Raj's honesty comes back to haunt him when his new girlfriend is unfriendly to Penny; the guys think about becoming part owners in Stuart's store.

When Sheldon must teach a class, Howard decides to take it; Amy takes advantage of the tension between Penny and Bernadette.

Dan is finally ready to share his feelings with Louise; Darlene realizes how badly she wants a baby; Ben gets caught up playing handyman and babysitter for Becky, which causes him to miss an important meeting.

Faced with an uncertain future, Sheldon considers a major change; Emily and Raj decide to take things to the next level.

Leonard and Amy make an unexpected trip to Arizona to fetch Sheldon; Penny interviews for a job at Bernadette's company; Stuart's relationship with Mrs. Wolowitz disturbs Howard.

When Sheldon must teach a class, Howard decides to take it; Amy takes advantage of the tension between Penny and Bernadette.

Raj's honesty comes back to haunt him when his new girlfriend is unfriendly to Penny; the guys think about becoming part owners in Stuart's store.

Monica and Ross cook Thanksgiving dinner for themselves, but everyone else shows up.

The friends renege on a promise not to bring dates to their New Year's Eve party.

Chandler learns details about his mother's (Morgan Fairchild) life when she appears on national television.

Rachel's Italian boyfriend tries to seduce Phoebe; Rachel accidentally reveals a secret to Ross; Monica's aunt refuses to take the lasagnas she ordered.

Wolowitz feels nervous when he is asked to throw the first pitch at a Los Angeles Angels game; Penny and Leonard want to prove Sheldon wrong after he says he and Amy are the better couple.

Raj's honesty comes back to haunt him when his new girlfriend is unfriendly to Penny; the guys think about becoming part owners in Stuart's store.

Bev is back from Arizona and realizes she'd like to use her finances to spread happiness; Bev decides to fund Mark's tuition to a prestigious coding camp, but Darlene tries to convince her to give the money to Harris instead.

Dan is finally ready to share his feelings with Louise; Darlene realizes how badly she wants a baby; Ben gets caught up playing handyman and babysitter for Becky, which causes him to miss an important meeting.

Brent buys a big-screen television; Lacey buys jewelry from Wanda.

Lacey learns what it means to be a victim of success when she invents a new sandwich that becomes a little too popular.

Karen is tasked with playing an online phone game for Fitzy while Wanda and Hank settle a bet with mini putt.

Oscar is disturbed to learn he and Emma have different notions about their final resting place; Wanda becomes obsessed with a productivity app while Lacey and Hank talk Brent into renovations.

Peter, Adam, Jeff and James are four dudes out for a night on the town; they are so excited to be in the Cash Cab.

These gals have been waiting for the day that they get to be on "Cash Cab," and here it is; unfortunately for them, they get two strikes at the start of the game.

Brent buys a big-screen television; Lacey buys jewelry from Wanda.

Lacey learns what it means to be a victim of success when she invents a new sandwich that becomes a little too popular.

Karen is tasked with playing an online phone game for Fitzy while Wanda and Hank settle a bet with mini putt.

Oscar is disturbed to learn he and Emma have different notions about their final resting place; Wanda becomes obsessed with a productivity app while Lacey and Hank talk Brent into renovations.

Peter, Adam, Jeff and James are four dudes out for a night on the town; they are so excited to be in the Cash Cab.

These gals have been waiting for the day that they get to be on "Cash Cab," and here it is; unfortunately for them, they get two strikes at the start of the game.

Brent buys a big-screen television; Lacey buys jewelry from Wanda.

Lacey learns what it means to be a victim of success when she invents a new sandwich that becomes a little too popular.

Karen is tasked with playing an online phone game for Fitzy while Wanda and Hank settle a bet with mini putt.

Oscar is disturbed to learn he and Emma have different notions about their final resting place; Wanda becomes obsessed with a productivity app while Lacey and Hank talk Brent into renovations.

Dan and Louise take their relationship to the next level and come to appreciate the complexities of aging; Darlene spends the night in jail and leaves parenting duties to Ben; Mark and a friend's class experiment leaves them both with hickeys.

Monica and Ross cook Thanksgiving dinner for themselves, but everyone else shows up.

The friends renege on a promise not to bring dates to their New Year's Eve party.

Chandler learns details about his mother's (Morgan Fairchild) life when she appears on national television.

Rachel's Italian boyfriend tries to seduce Phoebe; Rachel accidentally reveals a secret to Ross; Monica's aunt refuses to take the lasagnas she ordered.

During their weekend in Las Vegas, Bernadette and Amy accuse Penny of being a buzz kill; the guys try to invent the next big thing.

Raj and Sheldon try to simulate a dark-matter research expedition; after a fight about money, Penny and Leonard turn to Bernadette and Wolowitz for advice.

The guys try to help when Penny is faced with an awkward dilemma at work; Bernadette and Amy discuss sexuality and female scientists.

Dan and Louise take their relationship to the next level and come to appreciate the complexities of aging; Darlene spends the night in jail and leaves parenting duties to Ben; Mark and a friend's class experiment leaves them both with hickeys.

Darlene and Ben go apartment hunting; Jackie and Becky take Beverly Rose on a road trip to Mexico to meet her father for the first time; Dan reluctantly shares his financial troubles with Louise.

Phoebe's psychiatrist boyfriend (Fisher Stevens) annoys her friends with his analyses of their lives.

It's Valentine's Day and, out on his first date in nine years, Ross meets up with his ex-wife; Monica, Phoebe and Rachel rebel against the spirit of the day by burning mementos of past relationships.

A "high-spirited" restaurant owner wolfs down the gourmet meal Monica created as part of a job interview.

Joey asks Phoebe's sister (Lisa Kudrow in a dual role) on a date; Ross takes Lamaze classes with Carol (Jane Sibbett) and Susan (Jessica Hecht).

During their weekend in Las Vegas, Bernadette and Amy accuse Penny of being a buzz kill; the guys try to invent the next big thing.

Raj and Sheldon try to simulate a dark-matter research expedition; after a fight about money, Penny and Leonard turn to Bernadette and Wolowitz for advice.

Sheldon feels pressured to participate in romantic traditions when the gang re-creates a high-school prom on the roof.

Leonard has minor surgery on his nose, causing Sheldon to overreact; Bernadette and Howard work on their marriage.

The guys try to help when Penny is faced with an awkward dilemma at work; Bernadette and Amy discuss sexuality and female scientists.

Darlene and Ben go apartment hunting; Jackie and Becky take Beverly Rose on a road trip to Mexico to meet her father for the first time; Dan reluctantly shares his financial troubles with Louise.

During their weekend in Las Vegas, Bernadette and Amy accuse Penny of being a buzz kill; the guys try to invent the next big thing.

Raj and Sheldon try to simulate a dark-matter research expedition; after a fight about money, Penny and Leonard turn to Bernadette and Wolowitz for advice.

The guys try to help when Penny is faced with an awkward dilemma at work; Bernadette and Amy discuss sexuality and female scientists.

Leonard has minor surgery on his nose, causing Sheldon to overreact; Bernadette and Howard work on their marriage.

Phoebe's psychiatrist boyfriend (Fisher Stevens) annoys her friends with his analyses of their lives.

It's Valentine's Day and, out on his first date in nine years, Ross meets up with his ex-wife; Monica, Phoebe and Rachel rebel against the spirit of the day by burning mementos of past relationships.

A "high-spirited" restaurant owner wolfs down the gourmet meal Monica created as part of a job interview.

Joey asks Phoebe's sister (Lisa Kudrow in a dual role) on a date; Ross takes Lamaze classes with Carol (Jane Sibbett) and Susan (Jessica Hecht).

Sheldon feels pressured to participate in romantic traditions when the gang re-creates a high-school prom on the roof.

Leonard has minor surgery on his nose, causing Sheldon to overreact; Bernadette and Howard work on their marriage.

Dan and Louise take their relationship to the next level and come to appreciate the complexities of aging; Darlene spends the night in jail and leaves parenting duties to Ben; Mark and a friend's class experiment leaves them both with hickeys.

Darlene and Ben go apartment hunting; Jackie and Becky take Beverly Rose on a road trip to Mexico to meet her father for the first time; Dan reluctantly shares his financial troubles with Louise.

Brent installs a security camera at Corner Gas; Davis gets a stun gun.

At bingo night, Wanda steps in after the regular bingo caller takes a tumble; she's a hit with everyone except Emma who takes drastic steps to restore her winning streak.

It's Halloween in Dog River and Brent, Lacey, Wanda, and Hank face a possible haunting at Brent's house; Oscar and Emma realize angry teenagers are targeting them for pranks and recruit Karen and Davis to help them defend their home.

Brent, Lacey, Oscar, Hank, Davis, Karen, Wanda, and Emma are all getting a cartoon makeover as they return to Dog River for more adventures.

Matt, Daryl and Mark may well be the funniest guys ever in the Cash Cab; a first time in "Cash Cab" history for host Adam.

This gang is stoked to find out that they have entered the Cash Cab, bur they get a strike early in the game.

Brent installs a security camera at Corner Gas; Davis gets a stun gun.

At bingo night, Wanda steps in after the regular bingo caller takes a tumble; she's a hit with everyone except Emma who takes drastic steps to restore her winning streak.

It's Halloween in Dog River and Brent, Lacey, Wanda, and Hank face a possible haunting at Brent's house; Oscar and Emma realize angry teenagers are targeting them for pranks and recruit Karen and Davis to help them defend their home.

Brent, Lacey, Oscar, Hank, Davis, Karen, Wanda, and Emma are all getting a cartoon makeover as they return to Dog River for more adventures.

Matt, Daryl and Mark may well be the funniest guys ever in the Cash Cab; a first time in "Cash Cab" history for host Adam.

This gang is stoked to find out that they have entered the Cash Cab, bur they get a strike early in the game.

Brent installs a security camera at Corner Gas; Davis gets a stun gun.

At bingo night, Wanda steps in after the regular bingo caller takes a tumble; she's a hit with everyone except Emma who takes drastic steps to restore her winning streak.

It's Halloween in Dog River and Brent, Lacey, Wanda, and Hank face a possible haunting at Brent's house; Oscar and Emma realize angry teenagers are targeting them for pranks and recruit Karen and Davis to help them defend their home.

Brent, Lacey, Oscar, Hank, Davis, Karen, Wanda, and Emma are all getting a cartoon makeover as they return to Dog River for more adventures.

The Conners share their differing takes on why they all think everyone should vote; Louise gets an opportunity that might send her away from Lanford, prompting the family to interfere in Dan's complicated relationship.

Phoebe's psychiatrist boyfriend (Fisher Stevens) annoys her friends with his analyses of their lives.

It's Valentine's Day and, out on his first date in nine years, Ross meets up with his ex-wife; Monica, Phoebe and Rachel rebel against the spirit of the day by burning mementos of past relationships.

A "high-spirited" restaurant owner wolfs down the gourmet meal Monica created as part of a job interview.

Joey asks Phoebe's sister (Lisa Kudrow in a dual role) on a date; Ross takes Lamaze classes with Carol (Jane Sibbett) and Susan (Jessica Hecht).

Sheldon says goodbye to Fun With Flags; Howard, Leonard and Raj look through their dead professor's research; Bernadette learns her co-workers' true feelings.

When the guys agree to do something the girls like, Sheldon and Leonard end up having a confrontation.

Sheldon asks his friends to challenge him in hope of achieving a scientific breakthrough; Wolowitz invents a game about Raj.

The Conners share their differing takes on why they all think everyone should vote; Louise gets an opportunity that might send her away from Lanford, prompting the family to interfere in Dan's complicated relationship.

The Conners are dealing with the pandemic and life's financial troubles; the Lunch Box is closed for everything but takeout and delivery; Becky and Darlene are both forced to search for additional income at the newly reopened Wellman Plastics plant.

Sheldon struggles with newfound popularity after utilizing statistics to help the football team.

Sheldon is shocked when a NASA representative at school dismisses his science; he becomes determined to prove him wrong.

Meemaw causes a feud when she refuses to give George Sr. her brisket recipe; the kids try to resolve the feud.

George Sr. takes the boys on a road trip to see a space shuttle launch; Mary, Missy, and Meemaw have a girls weekend at the salon.

Sheldon says goodbye to Fun With Flags; Howard, Leonard and Raj look through their dead professor's research; Bernadette learns her co-workers' true feelings.

When the guys agree to do something the girls like, Sheldon and Leonard end up having a confrontation.

Sheldon and Leonard must defend themselves from an online bully's criticism after they co-publish a paper; Bernadette, Penny and Amy confront embarrassing moments during a girls night.

While the gang waits for the reopening of Stuart's comic book store Wolowitz gets some shocking news; Penny has trouble taking her own advice; Leonard and Raj think they spot Nathan Fillion at a restaurant.

Sheldon asks his friends to challenge him in hope of achieving a scientific breakthrough; Wolowitz invents a game about Raj.

The Conners are dealing with the pandemic and life's financial troubles; the Lunch Box is closed for everything but takeout and delivery; Becky and Darlene are both forced to search for additional income at the newly reopened Wellman Plastics plant.

Sheldon says goodbye to Fun With Flags; Howard, Leonard and Raj look through their dead professor's research; Bernadette learns her co-workers' true feelings.

When the guys agree to do something the girls like, Sheldon and Leonard end up having a confrontation.

Sheldon asks his friends to challenge him in hope of achieving a scientific breakthrough; Wolowitz invents a game about Raj.

While the gang waits for the reopening of Stuart's comic book store Wolowitz gets some shocking news; Penny has trouble taking her own advice; Leonard and Raj think they spot Nathan Fillion at a restaurant.

Sheldon struggles with newfound popularity after utilizing statistics to help the football team.

Sheldon is shocked when a NASA representative at school dismisses his science; he becomes determined to prove him wrong.

George Sr. takes the boys on a road trip to see a space shuttle launch; Mary, Missy, and Meemaw have a girls weekend at the salon.

Sheldon struggles with newfound popularity after utilizing statistics to help the football team.

Sheldon and Leonard must defend themselves from an online bully's criticism after they co-publish a paper; Bernadette, Penny and Amy confront embarrassing moments during a girls night.

While the gang waits for the reopening of Stuart's comic book store Wolowitz gets some shocking news; Penny has trouble taking her own advice; Leonard and Raj think they spot Nathan Fillion at a restaurant.

The Conners share their differing takes on why they all think everyone should vote; Louise gets an opportunity that might send her away from Lanford, prompting the family to interfere in Dan's complicated relationship.

The Conners are dealing with the pandemic and life's financial troubles; the Lunch Box is closed for everything but takeout and delivery; Becky and Darlene are both forced to search for additional income at the newly reopened Wellman Plastics plant.

Hank is unaffected by the mosquitoes; Lacey contributes to the time capsule; Oscar goes back to work at Corner Gas.

Brent brings his arsenal of pitches to a slo-pitch game; Davis and Karen can't ignore an act of vandalism.

Hank and Brent are made goodwill ambassadors; a new ATM machine draws a loyal following; Karen tries to learn French.

Lacey brings wine to dinner at the Leroy home; Hank's life is turned upside down when he wins the lottery.

Mike isn't quite sure what the Cash Cab is when he enters Adam's taxi; once Nicole and Stephanie explain, they had him at "cash.".

Stephanie, Adam and Catherine are super enthusiastic about the chance to show off their trivia skills in the Cash Cab.

Hank is unaffected by the mosquitoes; Lacey contributes to the time capsule; Oscar goes back to work at Corner Gas.

Brent brings his arsenal of pitches to a slo-pitch game; Davis and Karen can't ignore an act of vandalism.

Hank and Brent are made goodwill ambassadors; a new ATM machine draws a loyal following; Karen tries to learn French.

Lacey brings wine to dinner at the Leroy home; Hank's life is turned upside down when he wins the lottery.

Mike isn't quite sure what the Cash Cab is when he enters Adam's taxi; once Nicole and Stephanie explain, they had him at "cash.".

Stephanie, Adam and Catherine are super enthusiastic about the chance to show off their trivia skills in the Cash Cab.

Hank is unaffected by the mosquitoes; Lacey contributes to the time capsule; Oscar goes back to work at Corner Gas.

Brent brings his arsenal of pitches to a slo-pitch game; Davis and Karen can't ignore an act of vandalism.

Hank and Brent are made goodwill ambassadors; a new ATM machine draws a loyal following; Karen tries to learn French.

Lacey brings wine to dinner at the Leroy home; Hank's life is turned upside down when he wins the lottery.

Mary is devastated that Halloween has been canceled by the city, so Darlene and Becky enlist Jackie and the rest of the family to create an unforgettable experience; Mark goes toe-to-toe with a kid at school who doesn't believe in wearing a mask.

Sheldon struggles with newfound popularity after utilizing statistics to help the football team.

Sheldon is shocked when a NASA representative at school dismisses his science; he becomes determined to prove him wrong.

Meemaw causes a feud when she refuses to give George Sr. her brisket recipe; the kids try to resolve the feud.

George Sr. takes the boys on a road trip to see a space shuttle launch; Mary, Missy, and Meemaw have a girls weekend at the salon.

Penny and Sheldon design an experiment - as a joke - to make participants fall in love; Howard and Bernadette get into trouble at the airport.

Amy finds out that Sheldon applied for a one-way mission to colonize Mars; a trip to the pet store leads to a fight; Leonard has a surprise for Penny; Raj is busted while snooping in Emily's apartment.

A magazine article only credits Sheldon in an article about a paper he co-wrote with Leonard; a blackout at Mrs. Wolowitz's results in a final dinner in her honor.

Mary is devastated that Halloween has been canceled by the city, so Darlene and Becky enlist Jackie and the rest of the family to create an unforgettable experience; Mark goes toe-to-toe with a kid at school who doesn't believe in wearing a mask.

Darlene isolates herself from her co-workers at Wellman Plastics, leaving them with the impression she is an elitist snob; Louise decides to teach Harris an expensive life lesson; Jackie is determined to keep the restaurant running.

Sheldon is forced to tutor Georgie when poor grades threaten his brother's future on the football team.

When Sheldon moves to Dallas to attend a school for gifted children, the family struggles to cope with his absence.

Sheldon is required to attend Sunday school, but when he returns he decides to learn all he can about a multitude of religions.

Sheldon asks for a computer and unknowingly sparks an argument between Mary and George Sr. over the family's finances; Mary and the twins move in with Meemaw.

Penny and Sheldon design an experiment - as a joke - to make participants fall in love; Howard and Bernadette get into trouble at the airport.

Amy finds out that Sheldon applied for a one-way mission to colonize Mars; a trip to the pet store leads to a fight; Leonard has a surprise for Penny; Raj is busted while snooping in Emily's apartment.

When Sheldon and Leonard are asked to speak at UC Berkeley, they take a detour in hope of meeting an idol; Raj and Amy try to settle a dispute between Howard and Bernadette with a game of pingpong.

Sheldon and Amy build a blanket fort - and come to a crossroads in their relationship; Wolowitz meets a half-brother he didn't know he had; Leonard and Penny have an argument during an appearance on Wil Wheaton's podcast.

The Boys come up with a plan to smuggle dope across the Maine border; no one knows the whereabouts of Jacob.

Ricky, Julian and Bubbles leave the park for a dangerous venture in the woods near the Maine border.

Penny and Sheldon design an experiment - as a joke - to make participants fall in love; Howard and Bernadette get into trouble at the airport.

Amy finds out that Sheldon applied for a one-way mission to colonize Mars; a trip to the pet store leads to a fight; Leonard has a surprise for Penny; Raj is busted while snooping in Emily's apartment.

A magazine article only credits Sheldon in an article about a paper he co-wrote with Leonard; a blackout at Mrs. Wolowitz's results in a final dinner in her honor.

Sheldon and Amy build a blanket fort - and come to a crossroads in their relationship; Wolowitz meets a half-brother he didn't know he had; Leonard and Penny have an argument during an appearance on Wil Wheaton's podcast.

The Boys come up with a plan to smuggle dope across the Maine border; no one knows the whereabouts of Jacob.

Ricky, Julian and Bubbles leave the park for a dangerous venture in the woods near the Maine border.

Sheldon is required to attend Sunday school, but when he returns he decides to learn all he can about a multitude of religions.

Sheldon asks for a computer and unknowingly sparks an argument between Mary and George Sr. over the family's finances; Mary and the twins move in with Meemaw.

When Sheldon and Leonard are asked to speak at UC Berkeley, they take a detour in hope of meeting an idol; Raj and Amy try to settle a dispute between Howard and Bernadette with a game of pingpong.

Sheldon and Amy build a blanket fort - and come to a crossroads in their relationship; Wolowitz meets a half-brother he didn't know he had; Leonard and Penny have an argument during an appearance on Wil Wheaton's podcast.

Mary is devastated that Halloween has been canceled by the city, so Darlene and Becky enlist Jackie and the rest of the family to create an unforgettable experience; Mark goes toe-to-toe with a kid at school who doesn't believe in wearing a mask.

Darlene isolates herself from her co-workers at Wellman Plastics, leaving them with the impression she is an elitist snob; Louise decides to teach Harris an expensive life lesson; Jackie is determined to keep the restaurant running.

Brent is stuck with a phony one hundred dollar bill; Lacey gets the job of landing a new doctor.

Lacey discovers the dark secret behind the town's name; Brent's old band reunites.

A big air show is on nearby and the people of Dog River are excited; Lacey's breach of air show protocol has many in town upset.

Brent and Oscar form competing rinks in a cross-generational curling grudge match and Lacey is stuck in the middle.

Lacey's not invited to the Harvest Dance; Emma's dreaded jelly salad; Hank falls for highway worker.

Brent behaves differently when Wanda wears a skirt to work; feeling empowered, she tests the limits of her feminine charm, but Brent's new attitude toward her may not be motivating.

The guys fight over what message Raj should write for NASA in case of alien contact; Penny has to decide between auditioning for a movie or keeping her pharmaceutical sales job.

Wolowitz questions his engineering skills after he and Sheldon can't get a toy drone to fly; a canceled flight puts Leonard's plans in jeopardy; Raj sets his parents against one another after he's cut off financially.

When Sheldon's and Leonard's mothers finally meet, personalities collide; Howard decides to do his share of the chores - with a little help from his friends.

While facing dramatic changes in his relationship with Amy, Sheldon pushes Penny and Leonard to choose a wedding date.

Sheldon struggles to understand what is going on with Amy; Penny must decide if she can get past Leonard's bad behavior.

Leonard tries to ease Penny's mind; Sheldon plans a special episode of "Fun With Flags"; Bernadette feels bad about keeping a secret.

A flat tire during Leonard's bachelor party weekend in Mexico tests the guys' skills; Penny is compelled to tell her family that she and Leonard eloped.

An impending change to his living arrangements inspires Sheldon to revert to 2003, before he met Penny and Leonard; Raj and Howard form a band.

Barry Kripke expresses interest in Amy while leading a fencing lesson for the guys; when Stuart tries to attract female customers to the store, Penny, Amy and Bernadette help out.

Leonard and Sheldon go to great lengths to secure the helium they need during a nation-wide shortage; Bernadette and Penny try to find Amy a new man on a dating app.

Sheldon struggles to keep his emotions in check when he is interviewed for a documentary about Spock; Penny and Leonard make a surprising discovery; Wolowitz and Bernadette get into a disagreement about remodeling his childhood home.

Sheldon, Wolowitz and Koothrappali post an ad online to find a new girlfriend for Sheldon; Penny and Bernadette decide to spy when Amy is secretive about who she is dating.

Amy and Sheldon spend Thanksgiving at the aquarium - as friends; Wolowitz volunteers at the soup kitchen with Raj, Emily and Bernadette; Penny realizes that Leonard knows her better than she thought.

Sheldon has a song stuck in his head; despite their awkward date, Amy asks Dave over for dinner; Koothrappali and Wolowitz are obsessed with a fan of their band.

The guys fight over what message Raj should write for NASA in case of alien contact; Penny has to decide between auditioning for a movie or keeping her pharmaceutical sales job.

Wolowitz questions his engineering skills after he and Sheldon can't get a toy drone to fly; a canceled flight puts Leonard's plans in jeopardy; Raj sets his parents against one another after he's cut off financially.

When Sheldon's and Leonard's mothers finally meet, personalities collide; Howard decides to do his share of the chores - with a little help from his friends.

While facing dramatic changes in his relationship with Amy, Sheldon pushes Penny and Leonard to choose a wedding date.

Sheldon struggles to understand what is going on with Amy; Penny must decide if she can get past Leonard's bad behavior.

Leonard tries to ease Penny's mind; Sheldon plans a special episode of "Fun With Flags"; Bernadette feels bad about keeping a secret.

A flat tire during Leonard's bachelor party weekend in Mexico tests the guys' skills; Penny is compelled to tell her family that she and Leonard eloped.

An impending change to his living arrangements inspires Sheldon to revert to 2003, before he met Penny and Leonard; Raj and Howard form a band.

Barry Kripke expresses interest in Amy while leading a fencing lesson for the guys; when Stuart tries to attract female customers to the store, Penny, Amy and Bernadette help out.

Leonard and Sheldon go to great lengths to secure the helium they need during a nation-wide shortage; Bernadette and Penny try to find Amy a new man on a dating app.

Sheldon struggles to keep his emotions in check when he is interviewed for a documentary about Spock; Penny and Leonard make a surprising discovery; Wolowitz and Bernadette get into a disagreement about remodeling his childhood home.

Sheldon, Wolowitz and Koothrappali post an ad online to find a new girlfriend for Sheldon; Penny and Bernadette decide to spy when Amy is secretive about who she is dating.

Amy and Sheldon spend Thanksgiving at the aquarium - as friends; Wolowitz volunteers at the soup kitchen with Raj, Emily and Bernadette; Penny realizes that Leonard knows her better than she thought.

Sheldon has a song stuck in his head; despite their awkward date, Amy asks Dave over for dinner; Koothrappali and Wolowitz are obsessed with a fan of their band.

The guys fight over what message Raj should write for NASA in case of alien contact; Penny has to decide between auditioning for a movie or keeping her pharmaceutical sales job.

Wolowitz questions his engineering skills after he and Sheldon can't get a toy drone to fly; a canceled flight puts Leonard's plans in jeopardy; Raj sets his parents against one another after he's cut off financially.

When Sheldon's and Leonard's mothers finally meet, personalities collide; Howard decides to do his share of the chores - with a little help from his friends.

While facing dramatic changes in his relationship with Amy, Sheldon pushes Penny and Leonard to choose a wedding date.

Sheldon struggles to understand what is going on with Amy; Penny must decide if she can get past Leonard's bad behavior.

Leonard tries to ease Penny's mind; Sheldon plans a special episode of "Fun With Flags"; Bernadette feels bad about keeping a secret.

A flat tire during Leonard's bachelor party weekend in Mexico tests the guys' skills; Penny is compelled to tell her family that she and Leonard eloped.

An impending change to his living arrangements inspires Sheldon to revert to 2003, before he met Penny and Leonard; Raj and Howard form a band.

Barry Kripke expresses interest in Amy while leading a fencing lesson for the guys; when Stuart tries to attract female customers to the store, Penny, Amy and Bernadette help out.

Leonard and Sheldon go to great lengths to secure the helium they need during a nation-wide shortage; Bernadette and Penny try to find Amy a new man on a dating app.

Sheldon struggles to keep his emotions in check when he is interviewed for a documentary about Spock; Penny and Leonard make a surprising discovery; Wolowitz and Bernadette get into a disagreement about remodeling his childhood home.

Sheldon, Wolowitz and Koothrappali post an ad online to find a new girlfriend for Sheldon; Penny and Bernadette decide to spy when Amy is secretive about who she is dating.

Amy and Sheldon spend Thanksgiving at the aquarium - as friends; Wolowitz volunteers at the soup kitchen with Raj, Emily and Bernadette; Penny realizes that Leonard knows her better than she thought.

Sheldon has a song stuck in his head; despite their awkward date, Amy asks Dave over for dinner; Koothrappali and Wolowitz are obsessed with a fan of their band.

Hank's premonitions freak Wanda out; Lacey fixes the pothole.

When Emma gives Brent flack over his coffee drinking, he vows to quit cold turkey if she quits knitting; as Brent struggles in a caffeine free world, Emma takes up a new pastime.

Karen buys a new breathalyzer machine; Lacey puts up a new bulletin board.

Hank is being outwitted by a dog; Brent and Lacy create travel mugs for souvenirs.

Brent's annual trip to exotic locales stirs jealousy; Oscar experiments with e-mail.

Lacey wants to start a running club; Hank's new crossing guard job.

Monica takes Rachel to the hospital; Ross asks his dad (Elliott Gould) for advice on becoming a father.

When the girls lose money to the guys in a poker match they seek out Monica's Aunt Iris, a famous card player, for lessons and then demand a rematch.

Rachel accidentally lets Ross' pet monkey escape, and the friends form a search party; she is then horrified to learn that her former best friend is engaged to her ex-fiance.

Rachel is asked to be the maid of honor in her ex-fiance's (Mitchell Whitfield) wedding.

Monica, Rachel and Phoebe go on a covert operation to track down the woman who stole Monica's credit card.

Monica's new boyfriend (Stan Kirsch) exposes his own secret after she admits her true age.

When Carol gives birth, Ross and Susan almost miss the event; Joey befriends an unmarried pregnant woman.

Rachel discovers Ross' feelings for her when he goes out of town on a business trip.

Rachel decides to look up her former boyfriend (Cosimo Fusco) when she is distraught over Ross' new girlfriend (Lauren Tom).

While tending his son, Ross expresses his displeasure when Phoebe tastes Carol's breast milk to check the temperature.

Monica and Rachel's grumpy downstairs neighbor (Larry Hankin) dies and leaves all his belongings to the girls.

The group is amazed when Phoebe marries a Canadian ice dancer (Steve Zahn) to help him get his green card.

The group's plans of throwing a birthday party are marred when money becomes an issue; Monica gets a promotion; Chandler sets a woman up to get a date with her, but a case of mistaken identities means that he discovers what she really thought of him.

Joey and Chandler decide to baby-sit and use Ben as a way to pick up women; Phoebe loses her job singing at Central Perk.

Monica takes Rachel to the hospital; Ross asks his dad (Elliott Gould) for advice on becoming a father.

When the girls lose money to the guys in a poker match they seek out Monica's Aunt Iris, a famous card player, for lessons and then demand a rematch.

Rachel accidentally lets Ross' pet monkey escape, and the friends form a search party; she is then horrified to learn that her former best friend is engaged to her ex-fiance.

Rachel is asked to be the maid of honor in her ex-fiance's (Mitchell Whitfield) wedding.

Monica, Rachel and Phoebe go on a covert operation to track down the woman who stole Monica's credit card.

Monica's new boyfriend (Stan Kirsch) exposes his own secret after she admits her true age.

When Carol gives birth, Ross and Susan almost miss the event; Joey befriends an unmarried pregnant woman.

Rachel discovers Ross' feelings for her when he goes out of town on a business trip.

Rachel decides to look up her former boyfriend (Cosimo Fusco) when she is distraught over Ross' new girlfriend (Lauren Tom).

While tending his son, Ross expresses his displeasure when Phoebe tastes Carol's breast milk to check the temperature.

Monica and Rachel's grumpy downstairs neighbor (Larry Hankin) dies and leaves all his belongings to the girls.

The group is amazed when Phoebe marries a Canadian ice dancer (Steve Zahn) to help him get his green card.

The group's plans of throwing a birthday party are marred when money becomes an issue; Monica gets a promotion; Chandler sets a woman up to get a date with her, but a case of mistaken identities means that he discovers what she really thought of him.

Joey and Chandler decide to baby-sit and use Ben as a way to pick up women; Phoebe loses her job singing at Central Perk.

Monica takes Rachel to the hospital; Ross asks his dad (Elliott Gould) for advice on becoming a father.

When the girls lose money to the guys in a poker match they seek out Monica's Aunt Iris, a famous card player, for lessons and then demand a rematch.

Rachel accidentally lets Ross' pet monkey escape, and the friends form a search party; she is then horrified to learn that her former best friend is engaged to her ex-fiance.

Rachel is asked to be the maid of honor in her ex-fiance's (Mitchell Whitfield) wedding.

Monica, Rachel and Phoebe go on a covert operation to track down the woman who stole Monica's credit card.

Monica's new boyfriend (Stan Kirsch) exposes his own secret after she admits her true age.

When Carol gives birth, Ross and Susan almost miss the event; Joey befriends an unmarried pregnant woman.

Rachel discovers Ross' feelings for her when he goes out of town on a business trip.

Rachel decides to look up her former boyfriend (Cosimo Fusco) when she is distraught over Ross' new girlfriend (Lauren Tom).

While tending his son, Ross expresses his displeasure when Phoebe tastes Carol's breast milk to check the temperature.

Monica and Rachel's grumpy downstairs neighbor (Larry Hankin) dies and leaves all his belongings to the girls.

The group is amazed when Phoebe marries a Canadian ice dancer (Steve Zahn) to help him get his green card.

The group's plans of throwing a birthday party are marred when money becomes an issue; Monica gets a promotion; Chandler sets a woman up to get a date with her, but a case of mistaken identities means that he discovers what she really thought of him.

Joey and Chandler decide to baby-sit and use Ben as a way to pick up women; Phoebe loses her job singing at Central Perk.

Brent and Hank battle to take back their childhood tree house; Oscar's in denial.

Brent purchases a new digital camera; trivia showdown; Oscar is haunted by a ceramic gnome.

There's a food shortage at Corner Gas, causing a panic in Dog River; Lacey takes advantage of the situation by offering locals "exotic" recipes at The Ruby.

Wanda, Hank, and Lacey attempt to terrorize Brent with a Sasquatch hoax; Davis and Emma's obsession with a fantasy TV show called THRONE STRIFE forces Karen and Oscar to spend time together.

Sharon and Michelann are two classy dames in the Cash Cab who surprise everyone with their crazy energy.

Rachael, Kaya and Anna are three beauties who find themselves in the Cash Cab with their friend Aaron; Aaron comes through.

Brent and Hank battle to take back their childhood tree house; Oscar's in denial.

Brent purchases a new digital camera; trivia showdown; Oscar is haunted by a ceramic gnome.

There's a food shortage at Corner Gas, causing a panic in Dog River; Lacey takes advantage of the situation by offering locals "exotic" recipes at The Ruby.

Wanda, Hank, and Lacey attempt to terrorize Brent with a Sasquatch hoax; Davis and Emma's obsession with a fantasy TV show called THRONE STRIFE forces Karen and Oscar to spend time together.

Sharon and Michelann are two classy dames in the Cash Cab who surprise everyone with their crazy energy.

Rachael, Kaya and Anna are three beauties who find themselves in the Cash Cab with their friend Aaron; Aaron comes through.

Brent and Hank battle to take back their childhood tree house; Oscar's in denial.

Brent purchases a new digital camera; trivia showdown; Oscar is haunted by a ceramic gnome.

There's a food shortage at Corner Gas, causing a panic in Dog River; Lacey takes advantage of the situation by offering locals "exotic" recipes at The Ruby.

Wanda, Hank, and Lacey attempt to terrorize Brent with a Sasquatch hoax; Davis and Emma's obsession with a fantasy TV show called THRONE STRIFE forces Karen and Oscar to spend time together.

It's Beverly Rose's first birthday, but it's not all cake and candles as Becky and Emilio disagree on what kind of party they should have; Jackie is introduced to someone who wants to be more than friends.

There's no sound, but there sure are plenty of laughs. This crazy Quebec-based troupe uses the city as its stage, and its inhabitants, or victims, as characters! People are caught in a twisted yet funny web of comedic deception. This updated "Candid Camera" is a tad more risque and a little kookier with its practical jokes. The little snippets last only a few minutes, and some look more painful than others.

There's no sound, but there sure are plenty of laughs. This crazy Quebec-based troupe uses the city as its stage, and its inhabitants, or victims, as characters! People are caught in a twisted yet funny web of comedic deception. This updated "Candid Camera" is a tad more risque and a little kookier with its practical jokes. The little snippets last only a few minutes, and some look more painful than others.

There's no sound, but there sure are plenty of laughs. This crazy Quebec-based troupe uses the city as its stage, and its inhabitants, or victims, as characters! People are caught in a twisted yet funny web of comedic deception. This updated "Candid Camera" is a tad more risque and a little kookier with its practical jokes. The little snippets last only a few minutes, and some look more painful than others.

There's no sound, but there sure are plenty of laughs. This crazy Quebec-based troupe uses the city as its stage, and its inhabitants, or victims, as characters! People are caught in a twisted yet funny web of comedic deception. This updated "Candid Camera" is a tad more risque and a little kookier with its practical jokes. The little snippets last only a few minutes, and some look more painful than others.

After dating for more than five years, Amy and Sheldon spend the night together for the first time; Leonard, Wolowitz, and Koothrappali must decide what to do with an extra movie ticket.

Leonard agrees to meet with a psychiatrist (Jane Kaczmarek) on Penny's behalf; Sheldon and Koothrappali work together on an astronomical discovery; Wolowitz and Bernadette struggle with their feelings when Stuart moves out.

After dealing with Sheldon while he was sick, Leonard, Penny and the gang attempt to treat themselves to a Sheldon-free weekend.

It's Beverly Rose's first birthday, but it's not all cake and candles as Becky and Emilio disagree on what kind of party they should have; Jackie is introduced to someone who wants to be more than friends.

Darlene's friendship with a manager at Wellman Plastics lands her in an awkward situation; Louise's brother tries to win over Jackie by making a thoughtful gesture, creating uncomfortable tension.

There's no sound, but there sure are plenty of laughs; this crazy Quebec-based troupe uses the city as its stage, and its inhabitants, or victims, as characters.

There's no sound, but there sure are plenty of laughs; this crazy Quebec-based troupe uses the city as its stage, and its inhabitants, or victims, as characters.

There's no sound, but there sure are plenty of laughs. This crazy Quebec-based troupe uses the city as its stage, and its inhabitants, or victims, as characters! People are caught in a twisted yet funny web of comedic deception. This updated "Candid Camera" is a tad more risque and a little kookier with its practical jokes. The little snippets last only a few minutes, and some look more painful than others.

There's no sound, but there sure are plenty of laughs; this crazy Quebec-based troupe uses the city as its stage, and its inhabitants, or victims, as characters.

After dating for more than five years, Amy and Sheldon spend the night together for the first time; Leonard, Wolowitz, and Koothrappali must decide what to do with an extra movie ticket.

Leonard agrees to meet with a psychiatrist (Jane Kaczmarek) on Penny's behalf; Sheldon and Koothrappali work together on an astronomical discovery; Wolowitz and Bernadette struggle with their feelings when Stuart moves out.

Sheldon's excitement about his Meemaw's visit fades when she butts heads with Amy; Raj questions his relationship with Emily after meeting someone new.

Two pairs of Canadian comics hurl ruthless jokes at each other in hopes of coming out unscathed and crowned the victor by a distinguished panel of judges.

After dealing with Sheldon while he was sick, Leonard, Penny and the gang attempt to treat themselves to a Sheldon-free weekend.

Darlene's friendship with a manager at Wellman Plastics lands her in an awkward situation; Louise's brother tries to win over Jackie by making a thoughtful gesture, creating uncomfortable tension.

After dating for more than five years, Amy and Sheldon spend the night together for the first time; Leonard, Wolowitz, and Koothrappali must decide what to do with an extra movie ticket.

Leonard agrees to meet with a psychiatrist (Jane Kaczmarek) on Penny's behalf; Sheldon and Koothrappali work together on an astronomical discovery; Wolowitz and Bernadette struggle with their feelings when Stuart moves out.

After dealing with Sheldon while he was sick, Leonard, Penny and the gang attempt to treat themselves to a Sheldon-free weekend.

Two pairs of Canadian comics hurl ruthless jokes at each other in hopes of coming out unscathed and crowned the victor by a distinguished panel of judges.

There's no sound, but there sure are plenty of laughs; this crazy Quebec-based troupe uses the city as its stage, and its inhabitants, or victims, as characters.

There's no sound, but there sure are plenty of laughs; this crazy Quebec-based troupe uses the city as its stage, and its inhabitants, or victims, as characters.

There's no sound, but there sure are plenty of laughs. This crazy Quebec-based troupe uses the city as its stage, and its inhabitants, or victims, as characters! People are caught in a twisted yet funny web of comedic deception. This updated "Candid Camera" is a tad more risque and a little kookier with its practical jokes. The little snippets last only a few minutes, and some look more painful than others.

There's no sound, but there sure are plenty of laughs; this crazy Quebec-based troupe uses the city as its stage, and its inhabitants, or victims, as characters.

Sheldon's excitement about his Meemaw's visit fades when she butts heads with Amy; Raj questions his relationship with Emily after meeting someone new.

Two pairs of Canadian comics hurl ruthless jokes at each other in hopes of coming out unscathed and crowned the victor by a distinguished panel of judges.

It's Beverly Rose's first birthday, but it's not all cake and candles as Becky and Emilio disagree on what kind of party they should have; Jackie is introduced to someone who wants to be more than friends.

Darlene's friendship with a manager at Wellman Plastics lands her in an awkward situation; Louise's brother tries to win over Jackie by making a thoughtful gesture, creating uncomfortable tension.

Oscar tries to fix a roof; Brent and Karen write a kid's book on bike safety.

Brent fears he is losing his hair; Wanda gets a new lamp and has to fight to keep it.

Brent and the citizens of Dog River are annoyed when Lacey tries to make them eat local; Davis tries to train bees; Wanda sells homemade candles.

Wanda and Lacey entice the residents of Dog River with clickbait texts, while Oscar sets up a bait shop across the street from Corner Gas to teach Brent a business lesson; Davis and Karen involve Hank in a training exercise with chaotic results.

Andrew, Jason, Troy and Steve are four snappy dressers who end up in the Cash Cab.

Rachael, Kaya and Anna are three beauties who find themselves in the Cash Cab with their friend Aaron; Aaron comes through.

Oscar tries to fix a roof; Brent and Karen write a kid's book on bike safety.

Brent fears he is losing his hair; Wanda gets a new lamp and has to fight to keep it.

Brent and the citizens of Dog River are annoyed when Lacey tries to make them eat local; Davis tries to train bees; Wanda sells homemade candles.

Wanda and Lacey entice the residents of Dog River with clickbait texts, while Oscar sets up a bait shop across the street from Corner Gas to teach Brent a business lesson; Davis and Karen involve Hank in a training exercise with chaotic results.

Andrew, Jason, Troy and Steve are four snappy dressers who end up in the Cash Cab.

Rachael, Kaya and Anna are three beauties who find themselves in the Cash Cab with their friend Aaron; Aaron comes through.

Oscar tries to fix a roof; Brent and Karen write a kid's book on bike safety.

Brent fears he is losing his hair; Wanda gets a new lamp and has to fight to keep it.

Brent and the citizens of Dog River are annoyed when Lacey tries to make them eat local; Davis tries to train bees; Wanda sells homemade candles.

Wanda and Lacey entice the residents of Dog River with clickbait texts, while Oscar sets up a bait shop across the street from Corner Gas to teach Brent a business lesson; Davis and Karen involve Hank in a training exercise with chaotic results.

Harris' job is in jeopardy after joining a protest she strongly believes in, leading to tense discussions within the family; Jackie makes a visit to Wellman Plastics only to realize the company is instituting supervised drug testing.

There's no sound, but there sure are plenty of laughs; this crazy Quebec-based troupe uses the city as its stage, and its inhabitants, or victims, as characters.

There's no sound, but there sure are plenty of laughs; this crazy Quebec-based troupe uses the city as its stage, and its inhabitants, or victims, as characters.

There's no sound, but there sure are plenty of laughs. This crazy Quebec-based troupe uses the city as its stage, and its inhabitants, or victims, as characters! People are caught in a twisted yet funny web of comedic deception. This updated "Candid Camera" is a tad more risque and a little kookier with its practical jokes. The little snippets last only a few minutes, and some look more painful than others.

There's no sound, but there sure are plenty of laughs; this crazy Quebec-based troupe uses the city as its stage, and its inhabitants, or victims, as characters.

Amy and Sheldon host a Valentine's Day edition of Fun With Flags; Penny and Leonard wrestle with getting older; Howard and Bernadette make a discovery in their hot tub; Raj is torn between Emily and another woman.

The gang celebrates news of Bernadette's pregnancy by singing karaoke; Wolowitz's reaction to the pregnancy announcement worries Bernadette; Wolowitz believes he needs to make more money to support his growing family.

For the first time in nine years, the gang celebrates Sheldon's birthday - surprising him with a special guest.

Harris' job is in jeopardy after joining a protest she strongly believes in, leading to tense discussions within the family; Jackie makes a visit to Wellman Plastics only to realize the company is instituting supervised drug testing.

Ben's mom arrives after an unexpected death and unveils shocking information from the past; Becky and Emilio spend more time together.

A drunken Rachel leaves a phone message for Ross that may change their relationship; Chandler regrets asking Monica to help him lose weight.

Rachel sees Ross' list comparing her pros and cons to Julie's (Lauren Tom).

Phoebe, hoping for a Christmas family reunion, travels to upstate New York in search of her biological father.

After deciding to give up acting, Joey is offered a role in a soap opera; Rachel dates a guy named Russ, who is amazingly similar to Ross.

Amy and Sheldon host a Valentine's Day edition of Fun With Flags; Penny and Leonard wrestle with getting older; Howard and Bernadette make a discovery in their hot tub; Raj is torn between Emily and another woman.

The gang celebrates news of Bernadette's pregnancy by singing karaoke; Wolowitz's reaction to the pregnancy announcement worries Bernadette; Wolowitz believes he needs to make more money to support his growing family.

Leonard, Sheldon and Wolowitz file for a patent on their new invention; Penny, Amy and Bernadette give dating advice to Koothrappali after his breakup with Emily.

Sheldon makes a surprise revelation when Amy buys him a new laptop; Leonard and Wolowitz get sold out by Koothrappali after lying to their wives to attend a movie screening.

For the first time in nine years, the gang celebrates Sheldon's birthday - surprising him with a special guest.

Ben's mom arrives after an unexpected death and unveils shocking information from the past; Becky and Emilio spend more time together.

Amy and Sheldon host a Valentine's Day edition of Fun With Flags; Penny and Leonard wrestle with getting older; Howard and Bernadette make a discovery in their hot tub; Raj is torn between Emily and another woman.

The gang celebrates news of Bernadette's pregnancy by singing karaoke; Wolowitz's reaction to the pregnancy announcement worries Bernadette; Wolowitz believes he needs to make more money to support his growing family.

For the first time in nine years, the gang celebrates Sheldon's birthday - surprising him with a special guest.

Sheldon makes a surprise revelation when Amy buys him a new laptop; Leonard and Wolowitz get sold out by Koothrappali after lying to their wives to attend a movie screening.

A drunken Rachel leaves a phone message for Ross that may change their relationship; Chandler regrets asking Monica to help him lose weight.

Rachel sees Ross' list comparing her pros and cons to Julie's (Lauren Tom).

Phoebe, hoping for a Christmas family reunion, travels to upstate New York in search of her biological father.

After deciding to give up acting, Joey is offered a role in a soap opera; Rachel dates a guy named Russ, who is amazingly similar to Ross.

Leonard, Sheldon and Wolowitz file for a patent on their new invention; Penny, Amy and Bernadette give dating advice to Koothrappali after his breakup with Emily.

Sheldon makes a surprise revelation when Amy buys him a new laptop; Leonard and Wolowitz get sold out by Koothrappali after lying to their wives to attend a movie screening.

Harris' job is in jeopardy after joining a protest she strongly believes in, leading to tense discussions within the family; Jackie makes a visit to Wellman Plastics only to realize the company is instituting supervised drug testing.

Ben's mom arrives after an unexpected death and unveils shocking information from the past; Becky and Emilio spend more time together.

Lacey starts a coffee shop newsletter; Oscar's childhood dream.

Lacey's friend Connie comes to Dog River; Davis thinks Karen would make a bad undercover cop.

The sewer system backs up and causes chaos; Emma tries to trick Oscar into getting an updated family portrait.

Hank and Oscar team up to build a shelter for the apocalypse and Davis, Karen and Wanda argue over who would be the best leader; Emma traps Brent and Lacey in the cellar so they can hash things out.

Zach, Jaco and Grace are a group of mathematicians in the Cash Cab; a cameo appearance from Chester the Bike.

After an amusing entrance, Tim and Andrea feel it's their destiny that they managed to hail the Cash Cab.

Lacey starts a coffee shop newsletter; Oscar's childhood dream.

Lacey's friend Connie comes to Dog River; Davis thinks Karen would make a bad undercover cop.

The sewer system backs up and causes chaos; Emma tries to trick Oscar into getting an updated family portrait.

Hank and Oscar team up to build a shelter for the apocalypse and Davis, Karen and Wanda argue over who would be the best leader; Emma traps Brent and Lacey in the cellar so they can hash things out.

Zach, Jaco and Grace are a group of mathematicians in the Cash Cab; a cameo appearance from Chester the Bike.

After an amusing entrance, Tim and Andrea feel it's their destiny that they managed to hail the Cash Cab.

Lacey starts a coffee shop newsletter; Oscar's childhood dream.

Lacey's friend Connie comes to Dog River; Davis thinks Karen would make a bad undercover cop.

The sewer system backs up and causes chaos; Emma tries to trick Oscar into getting an updated family portrait.

Hank and Oscar team up to build a shelter for the apocalypse and Davis, Karen and Wanda argue over who would be the best leader; Emma traps Brent and Lacey in the cellar so they can hash things out.

Harris brings home her new friend, Josh, leaving the family questioning his intentions; Becky and Ben's attempt to build a closet stirs up family drama.

A drunken Rachel leaves a phone message for Ross that may change their relationship; Chandler regrets asking Monica to help him lose weight.

Rachel sees Ross' list comparing her pros and cons to Julie's (Lauren Tom).

Phoebe, hoping for a Christmas family reunion, travels to upstate New York in search of her biological father.

After deciding to give up acting, Joey is offered a role in a soap opera; Rachel dates a guy named Russ, who is amazingly similar to Ross.

Sheldon shares a secret about Leonard when the two go on a weekend trip with Penny and Amy; Koothrappali goes all out with pregnancy gifts.

During a group get-together, a minor argument between Sheldon and Leonard turns into a heated debate, leaving the rest of the gang to choose sides.

The gang runs into Penny's old boyfriend while out at a wine bar; Bernadette spends an evening with Sheldon; Koothrappali's introduction of his new girlfriend doesn't go as planned.

Harris brings home her new friend, Josh, leaving the family questioning his intentions; Becky and Ben's attempt to build a closet stirs up family drama.

Darlene earns a promotion at Wellman Plastics; Ben decides on a new career path; Jackie tries an herbal tea and it leads to an emotional revelation.

Ross helps put Carol and Susan's wedding plans back on track; Rachel's mother announces shocking new plans.

Joey starts dating a fan (Brooke Shields) who is gorgeous, but soon discovers that she's also crazy; Ross is reminded how much he misses his pet monkey and travels to the San Diego Zoo to find out what has happened to him.

Ross (David Schwimmer) catches up with Marcel on the set of a movie starring Jean-Claude Van Damme; Chandler gets a date with a girl he liked in fourth grade.

Monica's parents drop off some childhood keepsakes including her prom video.

Sheldon shares a secret about Leonard when the two go on a weekend trip with Penny and Amy; Koothrappali goes all out with pregnancy gifts.

During a group get-together, a minor argument between Sheldon and Leonard turns into a heated debate, leaving the rest of the gang to choose sides.

Sheldon wants to go to a movie screening, so he pays Stuart to spend the day with Amy; Penny has a difficult time connecting with Leonard's visiting mother.

Leonard's recently divorced parents and Sheldon's devoutly religious mother visit; when they are contacted about their guidance system, Wolowitz and Koothrappali think the government is after them.

The gang runs into Penny's old boyfriend while out at a wine bar; Bernadette spends an evening with Sheldon; Koothrappali's introduction of his new girlfriend doesn't go as planned.

Darlene earns a promotion at Wellman Plastics; Ben decides on a new career path; Jackie tries an herbal tea and it leads to an emotional revelation.

Sheldon shares a secret about Leonard when the two go on a weekend trip with Penny and Amy; Koothrappali goes all out with pregnancy gifts.

During a group get-together, a minor argument between Sheldon and Leonard turns into a heated debate, leaving the rest of the gang to choose sides.

The gang runs into Penny's old boyfriend while out at a wine bar; Bernadette spends an evening with Sheldon; Koothrappali's introduction of his new girlfriend doesn't go as planned.

Leonard's recently divorced parents and Sheldon's devoutly religious mother visit; when they are contacted about their guidance system, Wolowitz and Koothrappali think the government is after them.

Ross helps put Carol and Susan's wedding plans back on track; Rachel's mother announces shocking new plans.

Joey starts dating a fan (Brooke Shields) who is gorgeous, but soon discovers that she's also crazy; Ross is reminded how much he misses his pet monkey and travels to the San Diego Zoo to find out what has happened to him.

Ross (David Schwimmer) catches up with Marcel on the set of a movie starring Jean-Claude Van Damme; Chandler gets a date with a girl he liked in fourth grade.

Monica's parents drop off some childhood keepsakes including her prom video.

Sheldon wants to go to a movie screening, so he pays Stuart to spend the day with Amy; Penny has a difficult time connecting with Leonard's visiting mother.

Leonard's recently divorced parents and Sheldon's devoutly religious mother visit; when they are contacted about their guidance system, Wolowitz and Koothrappali think the government is after them.

Harris brings home her new friend, Josh, leaving the family questioning his intentions; Becky and Ben's attempt to build a closet stirs up family drama.

Darlene earns a promotion at Wellman Plastics; Ben decides on a new career path; Jackie tries an herbal tea and it leads to an emotional revelation.

It's Dog River's 100th birthday and Hank wants to pay tribute by building a scale model of the town using Lego blocks; like any artist, he demands perfection.

Davis shapes up; Brent and Lacey compete to get a secret from Karen.

Hank and Brent restore a vintage car; Karen deals with a stray cat; Emma and Lacey paint over some graffiti.

Hank accidentally punches Brent and it is agreed that Brent can punch him back.

Brie, Kara and Robin are three sassy girls who bop into the Cash Cab; they recognize Adam right away.

Anthony, Frank and Andrew are three buddies feeling confident in the Cash Cab; they make it to their destination.

It's Dog River's 100th birthday and Hank wants to pay tribute by building a scale model of the town using Lego blocks; like any artist, he demands perfection.

Davis shapes up; Brent and Lacey compete to get a secret from Karen.

Hank and Brent restore a vintage car; Karen deals with a stray cat; Emma and Lacey paint over some graffiti.

Hank accidentally punches Brent and it is agreed that Brent can punch him back.

Brie, Kara and Robin are three sassy girls who bop into the Cash Cab; they recognize Adam right away.

Anthony, Frank and Andrew are three buddies feeling confident in the Cash Cab; they make it to their destination.

It's Dog River's 100th birthday and Hank wants to pay tribute by building a scale model of the town using Lego blocks; like any artist, he demands perfection.

Davis shapes up; Brent and Lacey compete to get a secret from Karen.

Hank and Brent restore a vintage car; Karen deals with a stray cat; Emma and Lacey paint over some graffiti.

Hank accidentally punches Brent and it is agreed that Brent can punch him back.

Chuck's new purchase of a boat creates a rift; Darlene hires her first assistant at Wellman's Plastics but soon realizes she is anything but helpful; Jackie is laser-focused on her dream of being a contestant on "Jeopardy!".

Ross helps put Carol and Susan's wedding plans back on track; Rachel's mother announces shocking new plans.

Joey starts dating a fan (Brooke Shields) who is gorgeous, but soon discovers that she's also crazy; Ross is reminded how much he misses his pet monkey and travels to the San Diego Zoo to find out what has happened to him.

Ross (David Schwimmer) catches up with Marcel on the set of a movie starring Jean-Claude Van Damme; Chandler gets a date with a girl he liked in fourth grade.

Monica's parents drop off some childhood keepsakes including her prom video.

The group struggles through an awkward morning after Sheldon's mother and Leonard's father spend an evening together; Penny's family arrives.

Wolowitz has a meeting with Colonel Williams, a representative from the Air Force Department of Material Command.

Sheldon tries to stay awake with an energy drink as the gang races to finish its government project on time; Penny and Amy attend a gathering at Bert the Geologist's house; Koothrappali learns Bernadette's true feeling about her pregnancy.

Chuck's new purchase of a boat creates a rift; Darlene hires her first assistant at Wellman's Plastics but soon realizes she is anything but helpful; Jackie is laser-focused on her dream of being a contestant on "Jeopardy!".

Darlene starts to feel the pressures of her new job; Dan attempts to help Ben out at the hardware store, but the two don't always agree on how to run the business.

For young Sheldon Cooper, it isn't easy growing up in East Texas. Being a once-in-a-generation mind capable of advanced mathematics and science isn't always helpful in a land where church and football are king. And while the vulnerable, gifted and somewhat naive Sheldon deals with the world, his very normal family must find a way to deal with him. His father, George, is struggling to find his way as a high school football coach and as father to a boy he doesn't understand. Sheldon's mother, Mary, fiercely protects and nurtures her son. For 12 years on "The Big Bang Theory," audiences came to know the iconic, eccentric and extraordinary Sheldon Cooper. In "Young Sheldon," audiences get a chance to meet him in childhood, as he embarks on his innocent, awkward and hopeful journey toward the man he will become. Jim Parsons, who plays the adult version of Sheldon on "The Big Bang Theory," narrates.

When Mary takes a job as church secretary, she finds herself becoming Pastor Jeff's marriage counselor; Sheldon and Missy spend their first afternoon home alone.

Sheldon makes friends with an upperclassman who introduces him to a new field of science; Mary and George disagree on how to handle Sheldon's blossoming social life.

Devoted nurse Alex has just been promoted to Supervising Nurse in the emergency department at St. Denis Medical Center in Oregon. She works alongside an eclectic team of underfunded yet dedicated doctors, nurses and hospital staff, including her boss, Joyce, who wants nothing more than to turn the hospital into an international medical destination, and Dr. Ron, who's done it all, seen it all and is pretty much over it all. They're all doing their best not to lose their patience in a hospital overrun with patients - while caring for everyone who comes in the door, including each other.

The group struggles through an awkward morning after Sheldon's mother and Leonard's father spend an evening together; Penny's family arrives.

Wolowitz has a meeting with Colonel Williams, a representative from the Air Force Department of Material Command.

After her apartment floods, Amy suggests that she and Sheldon move in together; Koothrappali finds out the gender of Howard and Bernadette's baby before they do.

Things do not run smoothly when Amy moves in with Sheldon, and Leonard and Penny have to intervene; Howard and Bernadette find unexpected guests at their house when they decide to cancel their vacation plans.

Sheldon tries to stay awake with an energy drink as the gang races to finish its government project on time; Penny and Amy attend a gathering at Bert the Geologist's house; Koothrappali learns Bernadette's true feeling about her pregnancy.

Darlene starts to feel the pressures of her new job; Dan attempts to help Ben out at the hardware store, but the two don't always agree on how to run the business.

The group struggles through an awkward morning after Sheldon's mother and Leonard's father spend an evening together; Penny's family arrives.

Wolowitz has a meeting with Colonel Williams, a representative from the Air Force Department of Material Command.

Sheldon tries to stay awake with an energy drink as the gang races to finish its government project on time; Penny and Amy attend a gathering at Bert the Geologist's house; Koothrappali learns Bernadette's true feeling about her pregnancy.

Things do not run smoothly when Amy moves in with Sheldon, and Leonard and Penny have to intervene; Howard and Bernadette find unexpected guests at their house when they decide to cancel their vacation plans.

For young Sheldon Cooper, it isn't easy growing up in East Texas. Being a once-in-a-generation mind capable of advanced mathematics and science isn't always helpful in a land where church and football are king. And while the vulnerable, gifted and somewhat naive Sheldon deals with the world, his very normal family must find a way to deal with him. His father, George, is struggling to find his way as a high school football coach and as father to a boy he doesn't understand. Sheldon's mother, Mary, fiercely protects and nurtures her son. For 12 years on "The Big Bang Theory," audiences came to know the iconic, eccentric and extraordinary Sheldon Cooper. In "Young Sheldon," audiences get a chance to meet him in childhood, as he embarks on his innocent, awkward and hopeful journey toward the man he will become. Jim Parsons, who plays the adult version of Sheldon on "The Big Bang Theory," narrates.

When Mary takes a job as church secretary, she finds herself becoming Pastor Jeff's marriage counselor; Sheldon and Missy spend their first afternoon home alone.

Devoted nurse Alex has just been promoted to Supervising Nurse in the emergency department at St. Denis Medical Center in Oregon. She works alongside an eclectic team of underfunded yet dedicated doctors, nurses and hospital staff, including her boss, Joyce, who wants nothing more than to turn the hospital into an international medical destination, and Dr. Ron, who's done it all, seen it all and is pretty much over it all. They're all doing their best not to lose their patience in a hospital overrun with patients - while caring for everyone who comes in the door, including each other.

For young Sheldon Cooper, it isn't easy growing up in East Texas. Being a once-in-a-generation mind capable of advanced mathematics and science isn't always helpful in a land where church and football are king. And while the vulnerable, gifted and somewhat naive Sheldon deals with the world, his very normal family must find a way to deal with him. His father, George, is struggling to find his way as a high school football coach and as father to a boy he doesn't understand. Sheldon's mother, Mary, fiercely protects and nurtures her son. For 12 years on "The Big Bang Theory," audiences came to know the iconic, eccentric and extraordinary Sheldon Cooper. In "Young Sheldon," audiences get a chance to meet him in childhood, as he embarks on his innocent, awkward and hopeful journey toward the man he will become. Jim Parsons, who plays the adult version of Sheldon on "The Big Bang Theory," narrates.

After her apartment floods, Amy suggests that she and Sheldon move in together; Koothrappali finds out the gender of Howard and Bernadette's baby before they do.

Things do not run smoothly when Amy moves in with Sheldon, and Leonard and Penny have to intervene; Howard and Bernadette find unexpected guests at their house when they decide to cancel their vacation plans.

Chuck's new purchase of a boat creates a rift; Darlene hires her first assistant at Wellman's Plastics but soon realizes she is anything but helpful; Jackie is laser-focused on her dream of being a contestant on "Jeopardy!".

Darlene starts to feel the pressures of her new job; Dan attempts to help Ben out at the hardware store, but the two don't always agree on how to run the business.

Brent enters into a long-term relationship; Wanda's telescope.

A simple jar of jellybeans turns Dog River's park from a dilapidated local hazard into full-blown scandal.

Brent helps Lacey buy a new car; Karen and Davis try to break the idea of cops in donut shops.

Karen is upset when Emma cuts Brent's hair; Hank promises to stain Lacey's deck.

Angela, Ashley and Brian are super surprised and excited to be in the Cash Cab; they're riding high until they get stumped.

As they enter the taxi, these contestants mutter "too bad this wasn't the Cash Cab," and are completely delighted to find out where they are.

Brent enters into a long-term relationship; Wanda's telescope.

A simple jar of jellybeans turns Dog River's park from a dilapidated local hazard into full-blown scandal.

Brent helps Lacey buy a new car; Karen and Davis try to break the idea of cops in donut shops.

Karen is upset when Emma cuts Brent's hair; Hank promises to stain Lacey's deck.

Angela, Ashley and Brian are super surprised and excited to be in the Cash Cab; they're riding high until they get stumped.

As they enter the taxi, these contestants mutter "too bad this wasn't the Cash Cab," and are completely delighted to find out where they are.

Brent enters into a long-term relationship; Wanda's telescope.

A simple jar of jellybeans turns Dog River's park from a dilapidated local hazard into full-blown scandal.

Brent helps Lacey buy a new car; Karen and Davis try to break the idea of cops in donut shops.

Karen is upset when Emma cuts Brent's hair; Hank promises to stain Lacey's deck.

Mark is convinced he has COVID-19; Becky and Harris team up to confront Josh, who has been ghosting Harris; when Jackie visits Roseanne's grave, she finds an appalling headstone right next to it and sets out to make it right.

For young Sheldon Cooper, it isn't easy growing up in East Texas. Being a once-in-a-generation mind capable of advanced mathematics and science isn't always helpful in a land where church and football are king. And while the vulnerable, gifted and somewhat naive Sheldon deals with the world, his very normal family must find a way to deal with him. His father, George, is struggling to find his way as a high school football coach and as father to a boy he doesn't understand. Sheldon's mother, Mary, fiercely protects and nurtures her son. For 12 years on "The Big Bang Theory," audiences came to know the iconic, eccentric and extraordinary Sheldon Cooper. In "Young Sheldon," audiences get a chance to meet him in childhood, as he embarks on his innocent, awkward and hopeful journey toward the man he will become. Jim Parsons, who plays the adult version of Sheldon on "The Big Bang Theory," narrates.

When Mary takes a job as church secretary, she finds herself becoming Pastor Jeff's marriage counselor; Sheldon and Missy spend their first afternoon home alone.

Sheldon makes friends with an upperclassman who introduces him to a new field of science; Mary and George disagree on how to handle Sheldon's blossoming social life.

Devoted nurse Alex has just been promoted to Supervising Nurse in the emergency department at St. Denis Medical Center in Oregon. She works alongside an eclectic team of underfunded yet dedicated doctors, nurses and hospital staff, including her boss, Joyce, who wants nothing more than to turn the hospital into an international medical destination, and Dr. Ron, who's done it all, seen it all and is pretty much over it all. They're all doing their best not to lose their patience in a hospital overrun with patients - while caring for everyone who comes in the door, including each other.

Penny learns there are fans of her performance in "Serial Ape-ist" when she and Leonard attend a Comic Con event; Amy hosts a brunch at Penny's apartment; Wolowitz makes an impulsive purchase.

Amy lies about repairs being made to her apartment so she can continue living with Sheldon; Leonard lets Penny decorate Sheldon's old room.

Sheldon is determined to convince Amy they should procreate; Koothrappali is reluctant to tell the gang what the new woman he's dating does for a living.

Mark is convinced he has COVID-19; Becky and Harris team up to confront Josh, who has been ghosting Harris; when Jackie visits Roseanne's grave, she finds an appalling headstone right next to it and sets out to make it right.

Dan feels helpless when Louise refuses to let him put himself at risk for her; when Jackie learns the competing restaurants are posting negative reviews about The Lunch Box, she recruits Neville to help her confront them.