Sheldon and Amy have their first fight since moving in together; Koothrappali is shocked at the realities of financial independence when he stops receiving support from his father.

Darlene falls in love with a house she's looking; when the realtor shares she has a better chance of getting the house if she's part of a couple, she convinces Ben to pretend to be her partner.

Sheldon and Leonard disagree about how to divide their shared belongings; Koothrappali and Stuart fight to be the most helpful to Bernadette during her final weeks of pregnancy.

While Howard and Bernadette welcome their new baby into the world, Amy celebrates her own birthday with Sheldon.

Sheldon and Amy have their first fight since moving in together; Koothrappali is shocked at the realities of financial independence when he stops receiving support from his father.

The gang uses deception and betrayal to make it to the one open seat at Wil Wheaton's celebrity Dungeons and Dragons game with William Shatner, Joe Manganiello, Kareem Abdul-Jabbar and Kevin Smith.

Elizabeth's father (Bruce Willis) threatens to get Ross fired if he does not stop dating his daughter.

Chandler asks Phoebe to help him choose a special ring; Rachel urges Paul (Bruce Willis) to express his feelings.

Monica and Chandler encounter Richard (Tom Selleck), Monica's former boyfriend, in a romantic restaurant.

Monica and Chandler encounter Richard (Tom Selleck), Monica's former boyfriend, in a romantic restaurant.

The gang uses deception and betrayal to make it to the one open seat at Wil Wheaton's celebrity Dungeons and Dragons game with William Shatner, Joe Manganiello, Kareem Abdul-Jabbar and Kevin Smith.

When Penny and Bernadette go to San Diego for a pharmaceutical sales convention, Wolowitz is left in charge of the kids; Sheldon finds a book about experimenting on kids.

Mark returns to public school and finds it hard to fit in; Darlene isn't happy when she finds out what Mark's doing to make a little extra cash for college; Becky finds herself in an interesting situation with one of her college professors.

Darlene falls in love with a house she's looking; when the realtor shares she has a better chance of getting the house if she's part of a couple, she convinces Ben to pretend to be her partner.

Oscar kicks off the New Year with startling news about his national identity; the gang gets involved in a resolution contest.

Brent pleads with Hank not to embarrass him when they go to see Brent's favorite comic book writer.

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.

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.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Oscar kicks off the New Year with startling news about his national identity; the gang gets involved in a resolution contest.

Brent pleads with Hank not to embarrass him when they go to see Brent's favorite comic book writer.

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.

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.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Oscar kicks off the New Year with startling news about his national identity; the gang gets involved in a resolution contest.

Brent pleads with Hank not to embarrass him when they go to see Brent's favorite comic book writer.

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.

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.

The family is locked down at home due to a shooting incident in the neighborhood.

Elizabeth's father (Bruce Willis) threatens to get Ross fired if he does not stop dating his daughter.

Chandler asks Phoebe to help him choose a special ring; Rachel urges Paul (Bruce Willis) to express his feelings.

Monica and Chandler encounter Richard (Tom Selleck), Monica's former boyfriend, in a romantic restaurant.

Monica and Chandler encounter Richard (Tom Selleck), Monica's former boyfriend, in a romantic restaurant.

Leonard and Penny offer Sheldon's old room to Raj after he moves out of his apartment.

Leonard, Penny and Raj settle into their new living arrangement; Sheldon expresses interest in Amy's work.

Sheldon pushes himself to the limit when he collaborates on projects with Leonard and Wolowitz as well as Amy on the same day; Bernadette nears the end of her maternity leave and must return to work.

The family is locked down at home due to a shooting incident in the neighborhood.

When Becky inadvertently outs her relationship with professor Davis, it's his erratic behavior that sends Becky down a path to reevaluate their relationship; Dan and Darlene check in on Chuck, only to learn heartbreaking news about his family.

Monica feels that Rachel is trying to steal the spotlight from her engagement; Chandler worries about his performance in the bedroom.

Monica learns what her parents have done with her wedding fund; Joey teases Rachel about her late-night reading material.

Chandler's efforts to bond with Monica's father (Elliott Gould) backfire during a racquetball game; Rachel tries to teach Joey how to sail; Monica tries to replicate Phoebe's grandmother's cookie recipe.

Rachel considers hiring an inexperienced but handsome man over a better qualified woman as her executive assistant.

Leonard and Penny offer Sheldon's old room to Raj after he moves out of his apartment.

Leonard, Penny and Raj settle into their new living arrangement; Sheldon expresses interest in Amy's work.

When competitors Pemberton and Campbell charm America on a publicity tour, Sheldon and Amy try to win over Nobel laureates Kip Thorne, George Smoot and Frances Arnold; Halley's fear of the dark leads to opportunity and conflict.

The weight of winning a Nobel Prize weighs heavy on Amy's shoulders; Koothrappali and Wolowitz try to relive the good old days after Wolowitz buys a scooter that looks like the one he had years ago.

Sheldon pushes himself to the limit when he collaborates on projects with Leonard and Wolowitz as well as Amy on the same day; Bernadette nears the end of her maternity leave and must return to work.

When Becky inadvertently outs her relationship with professor Davis, it's his erratic behavior that sends Becky down a path to reevaluate their relationship; Dan and Darlene check in on Chuck, only to learn heartbreaking news about his family.

Leonard and Penny offer Sheldon's old room to Raj after he moves out of his apartment.

Leonard, Penny and Raj settle into their new living arrangement; Sheldon expresses interest in Amy's work.

Sheldon pushes himself to the limit when he collaborates on projects with Leonard and Wolowitz as well as Amy on the same day; Bernadette nears the end of her maternity leave and must return to work.

When competitors Pemberton and Campbell charm America on a publicity tour, Sheldon and Amy try to win over Nobel laureates Kip Thorne, George Smoot and Frances Arnold; Halley's fear of the dark leads to opportunity and conflict.

Monica feels that Rachel is trying to steal the spotlight from her engagement; Chandler worries about his performance in the bedroom.

Monica learns what her parents have done with her wedding fund; Joey teases Rachel about her late-night reading material.

Chandler's efforts to bond with Monica's father (Elliott Gould) backfire during a racquetball game; Rachel tries to teach Joey how to sail; Monica tries to replicate Phoebe's grandmother's cookie recipe.

Rachel considers hiring an inexperienced but handsome man over a better qualified woman as her executive assistant.

When competitors Pemberton and Campbell charm America on a publicity tour, Sheldon and Amy try to win over Nobel laureates Kip Thorne, George Smoot and Frances Arnold; Halley's fear of the dark leads to opportunity and conflict.

The weight of winning a Nobel Prize weighs heavy on Amy's shoulders; Koothrappali and Wolowitz try to relive the good old days after Wolowitz buys a scooter that looks like the one he had years ago.

The family is locked down at home due to a shooting incident in the neighborhood.

When Becky inadvertently outs her relationship with professor Davis, it's his erratic behavior that sends Becky down a path to reevaluate their relationship; Dan and Darlene check in on Chuck, only to learn heartbreaking news about his family.

After an incident leaves the townsfolk puzzled, Karen tries to convince the entire town that she is not actually a crazy cat lady.

Davis is sent to a sensitivity course after making too many blonde jokes.

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.

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

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

After an incident leaves the townsfolk puzzled, Karen tries to convince the entire town that she is not actually a crazy cat lady.

Davis is sent to a sensitivity course after making too many blonde jokes.

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.

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

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

After an incident leaves the townsfolk puzzled, Karen tries to convince the entire town that she is not actually a crazy cat lady.

Davis is sent to a sensitivity course after making too many blonde jokes.

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.

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

Darlene searches for a home that she and Becky can afford; after an attempt to boost business at the diner goes awry, Jackie finds herself apologizing to Ben and rethinking her future running the place.

Monica feels that Rachel is trying to steal the spotlight from her engagement; Chandler worries about his performance in the bedroom.

Monica learns what her parents have done with her wedding fund; Joey teases Rachel about her late-night reading material.

Chandler's efforts to bond with Monica's father (Elliott Gould) backfire during a racquetball game; Rachel tries to teach Joey how to sail; Monica tries to replicate Phoebe's grandmother's cookie recipe.

Rachel considers hiring an inexperienced but handsome man over a better qualified woman as her executive assistant.

Howard and Bernadette struggle to leave Halley in day care; Bert introduces the gang to his new girlfriend, Rebecca.

Leonard is less than thrilled when Penny considers accepting a job offer from Zack, her ex-boyfriend.

After celebrating the completion of the top-secret Air Force project, Leonard, Sheldon and Wolowitz get an unwelcome surprise; Amy receives an offer for a summer position as a visiting researcher.

Darlene searches for a home that she and Becky can afford; after an attempt to boost business at the diner goes awry, Jackie finds herself apologizing to Ben and rethinking her future running the place.

Dan enlists the help of a few good friends for the funeral home remodel; Louise points out that Dan's generosity with his time seems to benefit everyone but her; Robin and Darlene take a big career risk that may not pay off the way they expect it to.

The members of the gang try to remember an encounter with Gary Blauman when he shows up at the wedding.

With only a half an hour left before the wedding, Robin and Barney panic; Lily and Marshall rewrite their wedding vows.

Ted's kids hear the end of the story of how he met their mother.

Ted's kids hear the end of the story of how he met their mother.

Howard and Bernadette struggle to leave Halley in day care; Bert introduces the gang to his new girlfriend, Rebecca.

Leonard is less than thrilled when Penny considers accepting a job offer from Zack, her ex-boyfriend.

Koothrappali is worried people won't take him seriously in his own field after publishing a paper that suggests he may have discovered alien life; Leonard wants to be the principal investigator on a plasma physics study.

Kripke has proof that Dr. Pemberton plagiarized his thesis in college, and Sheldon and Amy aren't sure if they should turn him in or not; Wolowitz learns that Bernadette wasn't the only waitress at the Cheesecake Factory who had a crush on him.

After celebrating the completion of the top-secret Air Force project, Leonard, Sheldon and Wolowitz get an unwelcome surprise; Amy receives an offer for a summer position as a visiting researcher.

Dan enlists the help of a few good friends for the funeral home remodel; Louise points out that Dan's generosity with his time seems to benefit everyone but her; Robin and Darlene take a big career risk that may not pay off the way they expect it to.

Howard and Bernadette struggle to leave Halley in day care; Bert introduces the gang to his new girlfriend, Rebecca.

Leonard is less than thrilled when Penny considers accepting a job offer from Zack, her ex-boyfriend.

After celebrating the completion of the top-secret Air Force project, Leonard, Sheldon and Wolowitz get an unwelcome surprise; Amy receives an offer for a summer position as a visiting researcher.

Koothrappali is worried people won't take him seriously in his own field after publishing a paper that suggests he may have discovered alien life; Leonard wants to be the principal investigator on a plasma physics study.

The members of the gang try to remember an encounter with Gary Blauman when he shows up at the wedding.

With only a half an hour left before the wedding, Robin and Barney panic; Lily and Marshall rewrite their wedding vows.

Ted's kids hear the end of the story of how he met their mother.

Ted's kids hear the end of the story of how he met their mother.

Koothrappali is worried people won't take him seriously in his own field after publishing a paper that suggests he may have discovered alien life; Leonard wants to be the principal investigator on a plasma physics study.

Kripke has proof that Dr. Pemberton plagiarized his thesis in college, and Sheldon and Amy aren't sure if they should turn him in or not; Wolowitz learns that Bernadette wasn't the only waitress at the Cheesecake Factory who had a crush on him.

Darlene searches for a home that she and Becky can afford; after an attempt to boost business at the diner goes awry, Jackie finds herself apologizing to Ben and rethinking her future running the place.

Dan enlists the help of a few good friends for the funeral home remodel; Louise points out that Dan's generosity with his time seems to benefit everyone but her; Robin and Darlene take a big career risk that may not pay off the way they expect it to.

Brent finds a creative way to get through a week of no TV with the help of Hank and Wanda.

Wanda's new way of getting around town brings a European flair to Dog River; Hank's new greeting puts him in an awkward situation with Emma.

Brent and Hank take a trip down memory lane by stealing crab apples from a neighbor's yard; no one wants Oscar on their charades team; Davis and Wanda discover he benefits of complaining.

David tries to buy the original R2-D2 after Hank buys a robot online.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Brent finds a creative way to get through a week of no TV with the help of Hank and Wanda.

Wanda's new way of getting around town brings a European flair to Dog River; Hank's new greeting puts him in an awkward situation with Emma.

Brent and Hank take a trip down memory lane by stealing crab apples from a neighbor's yard; no one wants Oscar on their charades team; Davis and Wanda discover he benefits of complaining.

David tries to buy the original R2-D2 after Hank buys a robot online.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Brent finds a creative way to get through a week of no TV with the help of Hank and Wanda.

Wanda's new way of getting around town brings a European flair to Dog River; Hank's new greeting puts him in an awkward situation with Emma.

Brent and Hank take a trip down memory lane by stealing crab apples from a neighbor's yard; no one wants Oscar on their charades team; Davis and Wanda discover he benefits of complaining.

David tries to buy the original R2-D2 after Hank buys a robot online.

Darlene struggles to cope with the stress of construction; Lou returns as Mark's combative contrabassoon teacher.

The members of the gang try to remember an encounter with Gary Blauman when he shows up at the wedding.

With only a half an hour left before the wedding, Robin and Barney panic; Lily and Marshall rewrite their wedding vows.

Ted's kids hear the end of the story of how he met their mother.

Ted's kids hear the end of the story of how he met their mother.

The gang is concerned when Sheldon's former admirer, Dr. Ramona Nowitzki, resurfaces while Amy is away at Princeton.

Amy answers Sheldon's marriage proposal; Howard and Bernadette struggle with unexpected news.

Leonard's job is at stake after he gives an embarrassing radio interview; Amy and Bernadette bond over having to hide their success from Sheldon and Howard.

Darlene struggles to cope with the stress of construction; Lou returns as Mark's combative contrabassoon teacher.

Ben and Darlene are excited to share their good news with the family, but Neville, Jackie, Aldo and Harris share some very similar news of their own.

When Robin must leave in the middle of their first date, Ted can hardly wait to see her again, and his eagerness threatens to scare her away.

Hoping to spend more time with Robin, Ted throws a series of parties at his apartment.

Ted agrees to let Barney spice up his love life, so he ends up on an adventure of flying to Philadelphia, encountering the law and visiting the Liberty Bell.

Ted reconnects with an old shirt and sees a parallel to his love life, beginning to think that a woman from his past is perfect for him now.

The gang is concerned when Sheldon's former admirer, Dr. Ramona Nowitzki, resurfaces while Amy is away at Princeton.

Amy answers Sheldon's marriage proposal; Howard and Bernadette struggle with unexpected news.

Leonard is pleasantly surprised when Beverly comes to visit and she's genuinely kind to him, until he finds out the real reason she's there; Denise and Stuart overstay their welcome at the Wolowitz house.

Sheldon and Amy await big news.

After finally delivering a long overdue Team Coco shirt to a loyal fan, Conan performs with the Vienna Boys' Choir and channels his inner Freud.

The gang is concerned when Sheldon's former admirer, Dr. Ramona Nowitzki, resurfaces while Amy is away at Princeton.

Amy answers Sheldon's marriage proposal; Howard and Bernadette struggle with unexpected news.

Leonard's job is at stake after he gives an embarrassing radio interview; Amy and Bernadette bond over having to hide their success from Sheldon and Howard.

Leonard is pleasantly surprised when Beverly comes to visit and she's genuinely kind to him, until he finds out the real reason she's there; Denise and Stuart overstay their welcome at the Wolowitz house.

When Robin must leave in the middle of their first date, Ted can hardly wait to see her again, and his eagerness threatens to scare her away.

Hoping to spend more time with Robin, Ted throws a series of parties at his apartment.

Ted agrees to let Barney spice up his love life, so he ends up on an adventure of flying to Philadelphia, encountering the law and visiting the Liberty Bell.

Ted reconnects with an old shirt and sees a parallel to his love life, beginning to think that a woman from his past is perfect for him now.

Leonard is pleasantly surprised when Beverly comes to visit and she's genuinely kind to him, until he finds out the real reason she's there; Denise and Stuart overstay their welcome at the Wolowitz house.

Sheldon and Amy await big news.

Darlene struggles to cope with the stress of construction; Lou returns as Mark's combative contrabassoon teacher.

Ben and Darlene are excited to share their good news with the family, but Neville, Jackie, Aldo and Harris share some very similar news of their own.

Emma causes tension at the elementary school after a teacher leaves her in charge.

As a windstorm creates havoc, Lacey's sign on her rooftop begins to lose all of the letters one by one.

Brent has an opportunity to pursue his dream, but his weekly disappearances causes rumours to circulate.

A big city girl from Toronto moves in to run the coffee shop next door to the Corner Gas station.

A tax man comes to audit the Corner Gas business records; Lacey's approach to selling coffee doesn't fly with the locals.

Lacey offers free Pilates classes; Oscar takes steps to avoid being buried in a cheap looking coffin.

As Sheldon stresses about picking a wedding date, Amy tries to convince him he has a more laid-back side; Koothrappali and Stuart compete to win the heart of Bernadette's new co-worker.

Wolowitz and Sheldon bond over having disappointing fathers; Leonard is disturbed when his mother finds a new best friend in Penny.

Sheldon and Koothrappali confide in Bernadette when they can't handle Amy and Wolowitz working together; Penny and Leonard learn a secret from an unlikely source about dealing with Sheldon.

Sheldon auditions for the role of the new Professor Proton; Penny takes care of Halley when Bernadette and Wolowitz need bed rest.

Sheldon tries to keep his collaboration with Bert a secret; Penny and Bernadette coach Koothrappali on navigating his relationship with Ruchi.

Leonard and Wolowitz are furious when they learn Sheldon worked with the military behind their backs; Bernadette suspects Ruchi is trying to steal her job.

Sheldon tries to teach the guys a lesson after they cut him out of a potentially valuable investment; a seven-year-old video reveals a secret about Leonard and Penny's relationship.

Sheldon and Amy try to use math to eliminate wedding planning stress; Koothrappali "breaks up" with Wolowitz after realizing he is hurting his confidence.

Sheldon plans an authentic "Little House on the Prairie" dinner for Amy's birthday; Leonard receives a Christmas letter from his brother.

Sheldon and Amy subject their friends to a series of secret experiments to discover which two would be most qualified to be the best man and the maid of honor at their wedding; Penny reveals her true feelings about Amy.

Sheldon kicks Amy out to work solo; Amy and Leonard bond during a series of science experiments; Bert replaces Wolowitz in the band; Sheldon finds Penny a surprising source of scientific inspiration.

Koothrappali learns the woman he's dating has a very upset husband; Sheldon rents his old room for a quiet place to work.

Sheldon petitions Wil Wheaton to appear on the new "Professor Proton" show, but Wil offers a role to Amy instead; Penny gets angry when she thinks the female protagonist in Leonard's novel is based on her.

When Bernadette won't go into labor, her friends try different tactics to get things started; Wolowitz confronts Bernadette after Amy accidentally reveals she's already chosen their son's name.

As Sheldon stresses about picking a wedding date, Amy tries to convince him he has a more laid-back side; Koothrappali and Stuart compete to win the heart of Bernadette's new co-worker.

Wolowitz and Sheldon bond over having disappointing fathers; Leonard is disturbed when his mother finds a new best friend in Penny.

Sheldon and Koothrappali confide in Bernadette when they can't handle Amy and Wolowitz working together; Penny and Leonard learn a secret from an unlikely source about dealing with Sheldon.

Sheldon auditions for the role of the new Professor Proton; Penny takes care of Halley when Bernadette and Wolowitz need bed rest.

Sheldon tries to keep his collaboration with Bert a secret; Penny and Bernadette coach Koothrappali on navigating his relationship with Ruchi.

Leonard and Wolowitz are furious when they learn Sheldon worked with the military behind their backs; Bernadette suspects Ruchi is trying to steal her job.

Sheldon tries to teach the guys a lesson after they cut him out of a potentially valuable investment; a seven-year-old video reveals a secret about Leonard and Penny's relationship.

Sheldon and Amy try to use math to eliminate wedding planning stress; Koothrappali "breaks up" with Wolowitz after realizing he is hurting his confidence.

Sheldon plans an authentic "Little House on the Prairie" dinner for Amy's birthday; Leonard receives a Christmas letter from his brother.

Sheldon and Amy subject their friends to a series of secret experiments to discover which two would be most qualified to be the best man and the maid of honor at their wedding; Penny reveals her true feelings about Amy.

Sheldon kicks Amy out to work solo; Amy and Leonard bond during a series of science experiments; Bert replaces Wolowitz in the band; Sheldon finds Penny a surprising source of scientific inspiration.

Koothrappali learns the woman he's dating has a very upset husband; Sheldon rents his old room for a quiet place to work.

Sheldon petitions Wil Wheaton to appear on the new "Professor Proton" show, but Wil offers a role to Amy instead; Penny gets angry when she thinks the female protagonist in Leonard's novel is based on her.

When Bernadette won't go into labor, her friends try different tactics to get things started; Wolowitz confronts Bernadette after Amy accidentally reveals she's already chosen their son's name.

As Sheldon stresses about picking a wedding date, Amy tries to convince him he has a more laid-back side; Koothrappali and Stuart compete to win the heart of Bernadette's new co-worker.

Wolowitz and Sheldon bond over having disappointing fathers; Leonard is disturbed when his mother finds a new best friend in Penny.

Sheldon and Koothrappali confide in Bernadette when they can't handle Amy and Wolowitz working together; Penny and Leonard learn a secret from an unlikely source about dealing with Sheldon.

Sheldon auditions for the role of the new Professor Proton; Penny takes care of Halley when Bernadette and Wolowitz need bed rest.

Sheldon tries to keep his collaboration with Bert a secret; Penny and Bernadette coach Koothrappali on navigating his relationship with Ruchi.

Leonard and Wolowitz are furious when they learn Sheldon worked with the military behind their backs; Bernadette suspects Ruchi is trying to steal her job.

Sheldon tries to teach the guys a lesson after they cut him out of a potentially valuable investment; a seven-year-old video reveals a secret about Leonard and Penny's relationship.

Sheldon and Amy try to use math to eliminate wedding planning stress; Koothrappali "breaks up" with Wolowitz after realizing he is hurting his confidence.

Sheldon plans an authentic "Little House on the Prairie" dinner for Amy's birthday; Leonard receives a Christmas letter from his brother.

Sheldon and Amy subject their friends to a series of secret experiments to discover which two would be most qualified to be the best man and the maid of honor at their wedding; Penny reveals her true feelings about Amy.

Sheldon kicks Amy out to work solo; Amy and Leonard bond during a series of science experiments; Bert replaces Wolowitz in the band; Sheldon finds Penny a surprising source of scientific inspiration.

Koothrappali learns the woman he's dating has a very upset husband; Sheldon rents his old room for a quiet place to work.

Sheldon petitions Wil Wheaton to appear on the new "Professor Proton" show, but Wil offers a role to Amy instead; Penny gets angry when she thinks the female protagonist in Leonard's novel is based on her.

When Bernadette won't go into labor, her friends try different tactics to get things started; Wolowitz confronts Bernadette after Amy accidentally reveals she's already chosen their son's name.

Brent agrees to baby-sit Wanda's troubled 6-year old son, Tanner, to impress Lacey.

Rookie cop Karen makes it her mission to find out who spray-painted "Grad 68" on the water tower.

Dog River decides to put up a giant landmark; Oscar struggles to stop a love-struck admirer from ruining his marriage.

When Lacey's ex-fiance from Toronto comes to visit, the people of Dog River take matters into their own hands to protect her from her past.

Dog River prepares for its annual talent show; Brent's cousin Carl, whom everyone seems to love, except Brent, comes for a visit.

Davis tries to keep up with Brent; Lacey tries to prove she has community spirit by trying to save one of the town's historic landmarks.

Rachel makes her handsome new assistant (Eddie Cahill) hang out with Joey rather than the women in her office.

Monica makes Chandler apologize to an old girlfriend (Stacy Galina) for leaving her because she was fat; Monica struggles to select a maid of honor.

Ross' doctoral dissertation is stored in a remote corner of the university library frequently used by students having sex; Rachel and Phoebe bond with Joey's date (Kristin Davis), then try to convince him to continue seeing her.

Three young men and three young women - of the BFF kind - live in the same apartment complex and face life and love in New York. They're not above sticking their noses into one another's business and swapping romantic partners, which always leads to the kind of hilarity average people will never experience - especially during breakups.

Rachel finds it embarrassing that she is paying the way for her hunky new boyfriend (Eddie Cahill), who is also her assistant at work.

Ross' attempts to introduce his son, Ben, to Hanukkah are thwarted by the tyke's like of all things Christmas.

Phoebe and Joey are at odds when she tries to cancel their weekly dinner plans so she can meet an old beau.

During their first night together, Rachel and Tag realize they forgot to ship out an important package at the office.

On her first day as a telemarketer, Phoebe encounters a distraught man (Jason Alexander) who is determined to end his life.

Celebrating Rachel's 30th birthday inspires the friends to reminisce about their own 30th birthdays - Joey got angry with God for breaking their deal; Ross bought a sports car; Monica got drunk and embarrassed herself at her surprise party.

Joey accidentally informs a cast member (Susan Sarandon) that she will be fired so that his character will get her character's brain.

Monica and Chandler fondly reminisce about London until a startling revelation leaves Chandler floored.

Monica regrets telling a woman about a discount bridal shop when they end up competing for a wedding dress.

Joey is overjoyed to be nominated for a "Soapie" award; engaged Monica frets when she realizes she will never experience the thrill of a new relationship again; Ross spots Chandler sneaking out of a male strip club.

Rachel makes her handsome new assistant (Eddie Cahill) hang out with Joey rather than the women in her office.

Monica makes Chandler apologize to an old girlfriend (Stacy Galina) for leaving her because she was fat; Monica struggles to select a maid of honor.

Ross' doctoral dissertation is stored in a remote corner of the university library frequently used by students having sex; Rachel and Phoebe bond with Joey's date (Kristin Davis), then try to convince him to continue seeing her.

Three young men and three young women - of the BFF kind - live in the same apartment complex and face life and love in New York. They're not above sticking their noses into one another's business and swapping romantic partners, which always leads to the kind of hilarity average people will never experience - especially during breakups.

Rachel finds it embarrassing that she is paying the way for her hunky new boyfriend (Eddie Cahill), who is also her assistant at work.

Ross' attempts to introduce his son, Ben, to Hanukkah are thwarted by the tyke's like of all things Christmas.

Phoebe and Joey are at odds when she tries to cancel their weekly dinner plans so she can meet an old beau.

During their first night together, Rachel and Tag realize they forgot to ship out an important package at the office.

On her first day as a telemarketer, Phoebe encounters a distraught man (Jason Alexander) who is determined to end his life.

Celebrating Rachel's 30th birthday inspires the friends to reminisce about their own 30th birthdays - Joey got angry with God for breaking their deal; Ross bought a sports car; Monica got drunk and embarrassed herself at her surprise party.

Joey accidentally informs a cast member (Susan Sarandon) that she will be fired so that his character will get her character's brain.

Monica and Chandler fondly reminisce about London until a startling revelation leaves Chandler floored.

Monica regrets telling a woman about a discount bridal shop when they end up competing for a wedding dress.

Joey is overjoyed to be nominated for a "Soapie" award; engaged Monica frets when she realizes she will never experience the thrill of a new relationship again; Ross spots Chandler sneaking out of a male strip club.

Rachel makes her handsome new assistant (Eddie Cahill) hang out with Joey rather than the women in her office.

Monica makes Chandler apologize to an old girlfriend (Stacy Galina) for leaving her because she was fat; Monica struggles to select a maid of honor.

Ross' doctoral dissertation is stored in a remote corner of the university library frequently used by students having sex; Rachel and Phoebe bond with Joey's date (Kristin Davis), then try to convince him to continue seeing her.

Three young men and three young women - of the BFF kind - live in the same apartment complex and face life and love in New York. They're not above sticking their noses into one another's business and swapping romantic partners, which always leads to the kind of hilarity average people will never experience - especially during breakups.

Rachel finds it embarrassing that she is paying the way for her hunky new boyfriend (Eddie Cahill), who is also her assistant at work.

Ross' attempts to introduce his son, Ben, to Hanukkah are thwarted by the tyke's like of all things Christmas.

Phoebe and Joey are at odds when she tries to cancel their weekly dinner plans so she can meet an old beau.

During their first night together, Rachel and Tag realize they forgot to ship out an important package at the office.

On her first day as a telemarketer, Phoebe encounters a distraught man (Jason Alexander) who is determined to end his life.

Celebrating Rachel's 30th birthday inspires the friends to reminisce about their own 30th birthdays - Joey got angry with God for breaking their deal; Ross bought a sports car; Monica got drunk and embarrassed herself at her surprise party.

Joey accidentally informs a cast member (Susan Sarandon) that she will be fired so that his character will get her character's brain.

Monica and Chandler fondly reminisce about London until a startling revelation leaves Chandler floored.

Monica regrets telling a woman about a discount bridal shop when they end up competing for a wedding dress.

Joey is overjoyed to be nominated for a "Soapie" award; engaged Monica frets when she realizes she will never experience the thrill of a new relationship again; Ross spots Chandler sneaking out of a male strip club.

Brent develops a grudge for an out-of-town comedian who performs at a comedy night in Dog River; Hank is star-struck by the guy and arranges to be the M.C. for the night.

Brent puts a sign with slogans in front of the gas station and coffee shop; Brent and Emma worry about Oscar's memory.

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.

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

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Brent develops a grudge for an out-of-town comedian who performs at a comedy night in Dog River; Hank is star-struck by the guy and arranges to be the M.C. for the night.

Brent puts a sign with slogans in front of the gas station and coffee shop; Brent and Emma worry about Oscar's memory.

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.

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

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Brent develops a grudge for an out-of-town comedian who performs at a comedy night in Dog River; Hank is star-struck by the guy and arranges to be the M.C. for the night.

Brent puts a sign with slogans in front of the gas station and coffee shop; Brent and Emma worry about Oscar's memory.

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.

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

The Conners gear up for a megawedding; Jackie and Neville, Darlene and Ben, and Harris and Aldo are planning for a shared big day, but along the way, they discover that some of the couples may not be on the same page about their happily ever afters.

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.

Leonard jumps through hoops to help secure the perfect wedding venue for Sheldon and Amy; Bernadette and Wolowitz have a hard time deciding who should stay at home with the kids and who should go back to work.

Penny gets the opportunity to host Bill Gates at work when his company wants to partner with hers; Leonard, Koothrappali and Wolowitz do everything in their power to meet him; Sheldon thinks he is the victim of a prank.

Leonard decides to run against Sheldon for president of the tenants association; Bernadette encourages Wolowitz and Koothrappali to find the owner of a drone after they find it in the backyard.

The Conners gear up for a megawedding; Jackie and Neville, Darlene and Ben, and Harris and Aldo are planning for a shared big day, but along the way, they discover that some of the couples may not be on the same page about their happily ever afters.

In an effort to save money, Darlene and Ben join Jackie and Neville on a joint honeymoon, where the newlyweds' cost-saving measures contribute to a tension-filled getaway; Dan, Becky, Harris, Mark and Beverly Rose go to a water park.

Mary struggles to make new friends; Mandy pushes Georgie to date another woman.

Sheldon learns the university is building a database without him; Mary takes care of a bedridden Mandy and Meemaw.

Mary butts heads with Mandy's mother, Audrey; Sheldon attempts male bonding.

Paige drags Sheldon to a college party; Missy gets caught in a lie.

Leonard jumps through hoops to help secure the perfect wedding venue for Sheldon and Amy; Bernadette and Wolowitz have a hard time deciding who should stay at home with the kids and who should go back to work.

Penny gets the opportunity to host Bill Gates at work when his company wants to partner with hers; Leonard, Koothrappali and Wolowitz do everything in their power to meet him; Sheldon thinks he is the victim of a prank.

Bernadette and Wolowitz leave their kids for the first time; Penny and Leonard try to keep a secret; Sheldon and Amy stick together; Koothrappali makes a new friend; the gang travels together into an uncharted future.

Refinery employees balance the conflicting personalities of a small town with the antics of a stressful workplace.

Leonard decides to run against Sheldon for president of the tenants association; Bernadette encourages Wolowitz and Koothrappali to find the owner of a drone after they find it in the backyard.

In an effort to save money, Darlene and Ben join Jackie and Neville on a joint honeymoon, where the newlyweds' cost-saving measures contribute to a tension-filled getaway; Dan, Becky, Harris, Mark and Beverly Rose go to a water park.

Leonard jumps through hoops to help secure the perfect wedding venue for Sheldon and Amy; Bernadette and Wolowitz have a hard time deciding who should stay at home with the kids and who should go back to work.

Penny gets the opportunity to host Bill Gates at work when his company wants to partner with hers; Leonard, Koothrappali and Wolowitz do everything in their power to meet him; Sheldon thinks he is the victim of a prank.

Leonard decides to run against Sheldon for president of the tenants association; Bernadette encourages Wolowitz and Koothrappali to find the owner of a drone after they find it in the backyard.

Refinery employees balance the conflicting personalities of a small town with the antics of a stressful workplace.

Mary struggles to make new friends; Mandy pushes Georgie to date another woman.

Sheldon learns the university is building a database without him; Mary takes care of a bedridden Mandy and Meemaw.

Mary butts heads with Mandy's mother, Audrey; Sheldon attempts male bonding.

Paige drags Sheldon to a college party; Missy gets caught in a lie.

Refinery employees balance the conflicting personalities of a small town with the antics of a stressful workplace.

The Conners gear up for a megawedding; Jackie and Neville, Darlene and Ben, and Harris and Aldo are planning for a shared big day, but along the way, they discover that some of the couples may not be on the same page about their happily ever afters.

In an effort to save money, Darlene and Ben join Jackie and Neville on a joint honeymoon, where the newlyweds' cost-saving measures contribute to a tension-filled getaway; Dan, Becky, Harris, Mark and Beverly Rose go to a water park.

The Dog River hockey team finds itself at a crossroads; Brent is a great goalie and is being taken for granted by his teammates; when an offer from a rival team comes his way, he has a decision to make.

On the way to the Grey Cup, Brent considers his real feelings for Lacey.

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

Lacey tries to get a photo of a blue moon sunrise with Brent, but it turns awkward; Hank is suspicious about Oscar being nice to Emma; Davis and Wanda argue about a new book.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

The Dog River hockey team finds itself at a crossroads; Brent is a great goalie and is being taken for granted by his teammates; when an offer from a rival team comes his way, he has a decision to make.

On the way to the Grey Cup, Brent considers his real feelings for Lacey.

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

Lacey tries to get a photo of a blue moon sunrise with Brent, but it turns awkward; Hank is suspicious about Oscar being nice to Emma; Davis and Wanda argue about a new book.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

The Dog River hockey team finds itself at a crossroads; Brent is a great goalie and is being taken for granted by his teammates; when an offer from a rival team comes his way, he has a decision to make.

On the way to the Grey Cup, Brent considers his real feelings for Lacey.

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

Lacey tries to get a photo of a blue moon sunrise with Brent, but it turns awkward; Hank is suspicious about Oscar being nice to Emma; Davis and Wanda argue about a new book.

When Jackie moves in with Neville, he shows up to their home with an excess of animals from his vet office; Darlene and Ben have an argument as Ben points out Darlene is turning into her father.

Mary struggles to make new friends; Mandy pushes Georgie to date another woman.

Sheldon learns the university is building a database without him; Mary takes care of a bedridden Mandy and Meemaw.

Mary butts heads with Mandy's mother, Audrey; Sheldon attempts male bonding.

Paige drags Sheldon to a college party; Missy gets caught in a lie.

A brilliant but reclusive scientist, Doctor Wolcott, invites Sheldon to his cabin in the middle of nowhere; Penny and Bernadette improvise after Amy doesn't like the tame bachelorette party they planned for her.

Sheldon's comic book store experience changes when writer Neil Gaiman puts Stuart's store on the map; friendships are threatened when Koothrappali takes credit for Penny's astronomical discovery.

Sheldon goes to Las Vegas to win money for science; Penny and Bernadette take Amy wedding dress shopping, but her terrible choice entangles them in a web of lies.

When Jackie moves in with Neville, he shows up to their home with an excess of animals from his vet office; Darlene and Ben have an argument as Ben points out Darlene is turning into her father.

Mark is anxious to get his driver's license when a job opportunity presents itself across town; Darlene attempts to teach Mark to drive, but her frantic energy sends him running to Ben for help; Harris meets a new guy online.

Joey auditions for a big role which will require him to appear naked; Rachel and Phoebe plan Monica's bridal shower; Ross and Monica's attractive cousin visits and stirs the passions of all men who meet her.

A college friend with whom Rachel shared an embarrassing and passionate moment shows up at Central Perk; Chandler and Ross argue for possession of Val Kilmer's tuxedo; Joey drives Monica crazy over the wedding schedule.

With only four weeks until their wedding, Monica and Chandler try to write their vows; Chandler enlists the boys' help, while Monica does the same with the girls.

Trying to ensure an ideal wedding, Monica arranges a meeting so Chandler and his estranged father can reconcile.

A brilliant but reclusive scientist, Doctor Wolcott, invites Sheldon to his cabin in the middle of nowhere; Penny and Bernadette improvise after Amy doesn't like the tame bachelorette party they planned for her.

Sheldon's comic book store experience changes when writer Neil Gaiman puts Stuart's store on the map; friendships are threatened when Koothrappali takes credit for Penny's astronomical discovery.

Penny's first date with Leonard goes awry; Penny finds Sheldon to be an unwilling confidant.

Raj gets an inflated ego and makes a play for Penny after being referenced in a magazine article.

Sheldon goes to Las Vegas to win money for science; Penny and Bernadette take Amy wedding dress shopping, but her terrible choice entangles them in a web of lies.

Mark is anxious to get his driver's license when a job opportunity presents itself across town; Darlene attempts to teach Mark to drive, but her frantic energy sends him running to Ben for help; Harris meets a new guy online.

A brilliant but reclusive scientist, Doctor Wolcott, invites Sheldon to his cabin in the middle of nowhere; Penny and Bernadette improvise after Amy doesn't like the tame bachelorette party they planned for her.

Sheldon's comic book store experience changes when writer Neil Gaiman puts Stuart's store on the map; friendships are threatened when Koothrappali takes credit for Penny's astronomical discovery.

Sheldon goes to Las Vegas to win money for science; Penny and Bernadette take Amy wedding dress shopping, but her terrible choice entangles them in a web of lies.

Penny's first date with Leonard goes awry; Penny finds Sheldon to be an unwilling confidant.

Joey auditions for a big role which will require him to appear naked; Rachel and Phoebe plan Monica's bridal shower; Ross and Monica's attractive cousin visits and stirs the passions of all men who meet her.

A college friend with whom Rachel shared an embarrassing and passionate moment shows up at Central Perk; Chandler and Ross argue for possession of Val Kilmer's tuxedo; Joey drives Monica crazy over the wedding schedule.

With only four weeks until their wedding, Monica and Chandler try to write their vows; Chandler enlists the boys' help, while Monica does the same with the girls.

Trying to ensure an ideal wedding, Monica arranges a meeting so Chandler and his estranged father can reconcile.

Penny's first date with Leonard goes awry; Penny finds Sheldon to be an unwilling confidant.

Raj gets an inflated ego and makes a play for Penny after being referenced in a magazine article.

When Jackie moves in with Neville, he shows up to their home with an excess of animals from his vet office; Darlene and Ben have an argument as Ben points out Darlene is turning into her father.

Mark is anxious to get his driver's license when a job opportunity presents itself across town; Darlene attempts to teach Mark to drive, but her frantic energy sends him running to Ben for help; Harris meets a new guy online.

Brent and Lacey try to figure out their relationship; Emma's on the warpath.

Brent finds out his parents never married; Lacey's mission to help Oscar.

Lacey is frustrated with the new party planning methods; Wanda convinces Brent and Hank to take high school tests to see who is smarter.

The women can't get rid of Hank from a girls-only event; Brent stocks a new drink and Wanda is attracted to its cardboard promotion.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Brent and Lacey try to figure out their relationship; Emma's on the warpath.

Brent finds out his parents never married; Lacey's mission to help Oscar.

Lacey is frustrated with the new party planning methods; Wanda convinces Brent and Hank to take high school tests to see who is smarter.

The women can't get rid of Hank from a girls-only event; Brent stocks a new drink and Wanda is attracted to its cardboard promotion.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Brent and Lacey try to figure out their relationship; Emma's on the warpath.

Brent finds out his parents never married; Lacey's mission to help Oscar.

Lacey is frustrated with the new party planning methods; Wanda convinces Brent and Hank to take high school tests to see who is smarter.

The women can't get rid of Hank from a girls-only event; Brent stocks a new drink and Wanda is attracted to its cardboard promotion.

When a relative passes away unexpectedly, the family must debate about who should gain custody of a jaded nephew, who is just shy of his 18th birthday.

Joey auditions for a big role which will require him to appear naked; Rachel and Phoebe plan Monica's bridal shower; Ross and Monica's attractive cousin visits and stirs the passions of all men who meet her.

A college friend with whom Rachel shared an embarrassing and passionate moment shows up at Central Perk; Chandler and Ross argue for possession of Val Kilmer's tuxedo; Joey drives Monica crazy over the wedding schedule.

With only four weeks until their wedding, Monica and Chandler try to write their vows; Chandler enlists the boys' help, while Monica does the same with the girls.

Trying to ensure an ideal wedding, Monica arranges a meeting so Chandler and his estranged father can reconcile.

Sheldon's mother won't attend his wedding unless he invites his brother; the Wolowitz kids inadvertently infest Amy, Bernadette, Wolowitz and Koothrappali with pink eye.

When Amy's parents and Sheldon's family arrive, everybody is focused on making sure the wedding arrangements go according to plan - everyone except the bride and groom.

Sheldon and Amy's honeymoon runs aground in New York; Penny and Leonard discover they are uncomfortably similar to Amy's parents; Koothrappali insults physicist Neil deGrasse Tyson and starts a Twitter war.

When a relative passes away unexpectedly, the family must debate about who should gain custody of a jaded nephew, who is just shy of his 18th birthday.

Problems arise on Beverly Rose's first day of kindergarten; Becky and Darlene have a disagreement; Harris advises an unusual solution for Dan's back pain.

On the eve of the wedding, Ross searches for missing Chandler, who has doubts, while the girls distract unsuspecting Monica.

On the eve of the wedding, Ross searches for missing Chandler, who has doubts, while the girls distract unsuspecting Monica.

The reception following Monica and Chandler's wedding is almost upstaged by the news that a member of the group might be pregnant.

The gals speculate about the father of Rachel's baby, the guys scramble after Chandler loses the film from his wedding.

Sheldon's mother won't attend his wedding unless he invites his brother; the Wolowitz kids inadvertently infest Amy, Bernadette, Wolowitz and Koothrappali with pink eye.

When Amy's parents and Sheldon's family arrive, everybody is focused on making sure the wedding arrangements go according to plan - everyone except the bride and groom.

Leonard and his friends stage an intervention to force Sheldon to face his fear of driving.

Sheldon and the gang are confused when a young grad student is attracted to him.

Sheldon and Amy's honeymoon runs aground in New York; Penny and Leonard discover they are uncomfortably similar to Amy's parents; Koothrappali insults physicist Neil deGrasse Tyson and starts a Twitter war.

Problems arise on Beverly Rose's first day of kindergarten; Becky and Darlene have a disagreement; Harris advises an unusual solution for Dan's back pain.

Sheldon's mother won't attend his wedding unless he invites his brother; the Wolowitz kids inadvertently infest Amy, Bernadette, Wolowitz and Koothrappali with pink eye.

When Amy's parents and Sheldon's family arrive, everybody is focused on making sure the wedding arrangements go according to plan - everyone except the bride and groom.

Sheldon and Amy's honeymoon runs aground in New York; Penny and Leonard discover they are uncomfortably similar to Amy's parents; Koothrappali insults physicist Neil deGrasse Tyson and starts a Twitter war.

Leonard and his friends stage an intervention to force Sheldon to face his fear of driving.

On the eve of the wedding, Ross searches for missing Chandler, who has doubts, while the girls distract unsuspecting Monica.

On the eve of the wedding, Ross searches for missing Chandler, who has doubts, while the girls distract unsuspecting Monica.

The reception following Monica and Chandler's wedding is almost upstaged by the news that a member of the group might be pregnant.

The gals speculate about the father of Rachel's baby, the guys scramble after Chandler loses the film from his wedding.

Leonard and his friends stage an intervention to force Sheldon to face his fear of driving.

Sheldon and the gang are confused when a young grad student is attracted to him.

When a relative passes away unexpectedly, the family must debate about who should gain custody of a jaded nephew, who is just shy of his 18th birthday.

Problems arise on Beverly Rose's first day of kindergarten; Becky and Darlene have a disagreement; Harris advises an unusual solution for Dan's back pain.

Davis regains sense of smell; Brent realizes how little he knows about his friends.

Oscar asks for Karen's help in getting culinary revenge against Emma.

At the Summer Solstice Deck Party, the locals compete for a seat in the sun, Brent sells popsicles and Karen and Davis must share a gun.

Lacey and Brent help Hank build a zip-line downtown; Davis and Karen crack down on the free corner; Oscar and Emma win a free robot vacuum.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Davis regains sense of smell; Brent realizes how little he knows about his friends.

Oscar asks for Karen's help in getting culinary revenge against Emma.

At the Summer Solstice Deck Party, the locals compete for a seat in the sun, Brent sells popsicles and Karen and Davis must share a gun.

Lacey and Brent help Hank build a zip-line downtown; Davis and Karen crack down on the free corner; Oscar and Emma win a free robot vacuum.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Davis regains sense of smell; Brent realizes how little he knows about his friends.

Oscar asks for Karen's help in getting culinary revenge against Emma.

At the Summer Solstice Deck Party, the locals compete for a seat in the sun, Brent sells popsicles and Karen and Davis must share a gun.

Lacey and Brent help Hank build a zip-line downtown; Davis and Karen crack down on the free corner; Oscar and Emma win a free robot vacuum.

Dan encourages the family to decorate the house for Halloween; Harris takes a stand on an issue that ruffles a few feathers in Darlene's new neighborhood.

On the eve of the wedding, Ross searches for missing Chandler, who has doubts, while the girls distract unsuspecting Monica.

On the eve of the wedding, Ross searches for missing Chandler, who has doubts, while the girls distract unsuspecting Monica.

The reception following Monica and Chandler's wedding is almost upstaged by the news that a member of the group might be pregnant.

The gals speculate about the father of Rachel's baby, the guys scramble after Chandler loses the film from his wedding.

Sheldon and Amy go crazy trying to figure out what "perfect gift" Leonard and Penny gave them for their wedding; Koothrappali decides to settle down and asks his father to arrange a marriage for him.

Life gets complicated when Stuart starts bringing his new girlfriend home; Penny and Leonard talk about starting a family; Koothrappali explores an arranged marriage.

When Sheldon won't tell anyone why he's never mentioned Tam, his childhood best friend, Leonard takes matters into his own hands; Bernadette and Penny take Raj's fiancee out to dinner to get to know her.

Dan encourages the family to decorate the house for Halloween; Harris takes a stand on an issue that ruffles a few feathers in Darlene's new neighborhood.

Darlene receives a promotion at her company, but she quickly learns the fancy title is not all it's cracked up to be; when Louise loses her job at Casita Bonita, an opportunity arises to work with Jackie at the Lunch Box.

Ted and Barney go out to the clubs with Robin, as Lily and Marshall go to an adult wine and cheese party.

Ted makes his yearly pilgrimage to the rooftop Halloween party in search of a girl he met years ago.

Ted visits a matchmaker in his search for love, but he is sent away matchless.

Ted and Marshall decide that a sword fight will be the means of settling who will get to keep their apartment.

Sheldon and Amy go crazy trying to figure out what "perfect gift" Leonard and Penny gave them for their wedding; Koothrappali decides to settle down and asks his father to arrange a marriage for him.

Life gets complicated when Stuart starts bringing his new girlfriend home; Penny and Leonard talk about starting a family; Koothrappali explores an arranged marriage.

A paintball game leads to a fight between Sheldon and Penny, and romance for Leslie and Wolowitz.

Leonard, Sheldon and Wolowitz are ecstatic to learn that a famous science-fiction actress (Summer Glau) is aboard the train they are taking to San Francisco.

When Sheldon won't tell anyone why he's never mentioned Tam, his childhood best friend, Leonard takes matters into his own hands; Bernadette and Penny take Raj's fiancee out to dinner to get to know her.

Darlene receives a promotion at her company, but she quickly learns the fancy title is not all it's cracked up to be; when Louise loses her job at Casita Bonita, an opportunity arises to work with Jackie at the Lunch Box.

Sheldon and Amy go crazy trying to figure out what "perfect gift" Leonard and Penny gave them for their wedding; Koothrappali decides to settle down and asks his father to arrange a marriage for him.

Life gets complicated when Stuart starts bringing his new girlfriend home; Penny and Leonard talk about starting a family; Koothrappali explores an arranged marriage.

When Sheldon won't tell anyone why he's never mentioned Tam, his childhood best friend, Leonard takes matters into his own hands; Bernadette and Penny take Raj's fiancee out to dinner to get to know her.

A paintball game leads to a fight between Sheldon and Penny, and romance for Leslie and Wolowitz.

Ted and Barney go out to the clubs with Robin, as Lily and Marshall go to an adult wine and cheese party.

Ted makes his yearly pilgrimage to the rooftop Halloween party in search of a girl he met years ago.

Ted visits a matchmaker in his search for love, but he is sent away matchless.

Ted and Marshall decide that a sword fight will be the means of settling who will get to keep their apartment.

A paintball game leads to a fight between Sheldon and Penny, and romance for Leslie and Wolowitz.

Leonard, Sheldon and Wolowitz are ecstatic to learn that a famous science-fiction actress (Summer Glau) is aboard the train they are taking to San Francisco.

Dan encourages the family to decorate the house for Halloween; Harris takes a stand on an issue that ruffles a few feathers in Darlene's new neighborhood.

Darlene receives a promotion at her company, but she quickly learns the fancy title is not all it's cracked up to be; when Louise loses her job at Casita Bonita, an opportunity arises to work with Jackie at the Lunch Box.

Karen drives everyone crazy with her new hacky-sack; Oscar finds a pair of pants.

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

Wanda's excited about getting a tattoo; police crack down on jaywalkers.

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

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Karen drives everyone crazy with her new hacky-sack; Oscar finds a pair of pants.

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

Wanda's excited about getting a tattoo; police crack down on jaywalkers.

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

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Unassuming people enter a taxi cab as simple passengers taking a normal ride, only to be surprised when they discover that they're instant contestants; Adam Grove, asks the passengers trivia questions as he escorts them to their destination.

Karen drives everyone crazy with her new hacky-sack; Oscar finds a pair of pants.

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

Wanda's excited about getting a tattoo; police crack down on jaywalkers.

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

Jackie must come to terms with her mother becoming ill; Darlene's job hunt proves to be more difficult than anticipated.

Ted and Barney go out to the clubs with Robin, as Lily and Marshall go to an adult wine and cheese party.

Ted makes his yearly pilgrimage to the rooftop Halloween party in search of a girl he met years ago.

Ted visits a matchmaker in his search for love, but he is sent away matchless.

Ted and Marshall decide that a sword fight will be the means of settling who will get to keep their apartment.

When Amy doesn't have time to work on super-asymmetry, Sheldon goes to great lengths to ensure she's available; Koothrappali doesn't want Wolowitz to join him in hosting a show at the planetarium.

When Wolowitz dresses up as Sheldon for Halloween, Sheldon seeks retaliation at Leonard and Penny's Halloween party; Leonard is shocked when Penny doesn't remember their first kiss.

Leonard is caught between a rock and a hard place when he becomes responsible for distributing extra grant money; Bernadette turns the backyard playhouse into a hideaway to get away from her husband and kids.

Jackie must come to terms with her mother becoming ill; Darlene's job hunt proves to be more difficult than anticipated.

Darlene, Ben, Becky and Beverly Rose move into the new house, where Darlene implements a new set of rules.

Ted and Robin are surprised to run into Barney when they volunteer at a homeless shelter on Thanksgiving.

Ted relies on his friends to fill in the gaps left in his memory by a night of partying.