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

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.

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.

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.

All Elite Wrestling continues to inject new spirit, freshness and energy into mainstream wrestling featuring a world-class roster of diverse male and female wrestlers.

All Elite Wrestling continues to inject new spirit, freshness and energy into mainstream wrestling featuring a world-class roster of diverse male and female wrestlers.

Exciting new matches, more stories and more action, featuring the world-class All Elite Wrestling roster.

Exciting new matches, more stories and more action, featuring the world-class All Elite Wrestling roster.

Exciting new matches, more stories and more action, featuring the world-class All Elite Wrestling roster.

Exciting new matches, more stories and more action, featuring the world-class All Elite Wrestling roster.

One-star reviews are what Sal, Q and Murr will be combating, and then testing their acting chops with special celebrity guest, Richard Kind!

It's mayhem as the guys work as mall janitors with an out-of-control trash can and then devise a plan of revenge on our producer Dan Cast; in the end, two Jokers lose this episode race and will be getting the refill of a lifetime.

Alex's dedication to learning makes Claire and Phil question themselves; Gloria tries to make new friends; Mitch runs into an ex-girlfriend while out with Cam.

Claire and Phil find themselves in a compromising position when the kids try to surprise them with breakfast in bed; an e-mail mars Jay and Gloria's Vegas vacation; Mitch and Cam try to get a hookup at a hot new restaurant.

Claire and Phil decide to reprise their role-playing adventure from the previous year; Jay's elaborate Valentine's surprise for Gloria keeps getting held up; an admirer comes between Cameron and Mitchell.

Fizbo is disinvited from Lily's birthday party; Mitchell and Claire's mother DeDe (Shelley Long) comes to the party with Claire's ex-boyfriend (Matt Dillon).

Gloria and Jay try to help when Phil and Claire get into a huge argument; Cameron asks Mitchell and Luke to help prepare for a big fundraising event.

Claire wears herself out trying to make peace between Alex and Haley; Phil sneaks off for a day at the spa; Cameron decides to write a book.

Claire and Phil worry when they learn Luke has befriended their cantankerous old neighbor; Jay tries to avoid attending a symphony concert with Gloria and Manny; Haley baby-sits Lily.

Cameron is overzealous in his planning of the spring musical performance at Luke and Manny's school; Jay's brother visits; Phil convinces the family to be in his new ad.

Mitchell and Cameron try to choose who would best take care of Lily should anything happen to them.

Gloria and Claire plan a Mother's Day hike with the kids; things becomes awkward when Phil catches Jay in a moment of weakness.

Phil and Claire shock the kids by switching parenting roles for a day; Jay gives advice to an entrepreneur about his dog-training business; Cameron has the flu, leaving Mitchell to decide what to do with their Lady Gaga tickets.

As the family prepares for Alex's middle-school graduation, Jay tries to hide a cosmetic-procedure mishap, Cameron is upset about Mitchell laughing at his expense, and Phil antagonizes Claire.

The family scrambles to plan a big celebration for Jay's birthday; Phil runs into his college nemesis; Cameron gets into hot water at a bakery.

Sheldon considers dropping out of college to focus on building his database; George Sr. is frustrated when someone else gets credit for his football wins.

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.

The Coopers can't be found as Mandy goes into labor; Sheldon is excited about the launch of his database.

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).

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.

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.

Sheldon tries to bond with Amy's father, but when Wolowitz lures Mr. Fowler away with magic tricks, Sheldon has no choice but to bond with Mrs. Fowler; Koothrappali and Anu try to get physical for the first time.

Sheldon and Amy are devastated after learning from a Russian paper that Super Asymmetry has already been discovered and disproved; Bernadette wants to beat Howard in a popular video game.

A VHS tape from Sheldon's past inspires him not to give up; Bernadette turns into a pageant mom when she tries to help Wolowitz with his Magic Castle audition.

Penny and Leonard organize a paintball game, which results in mayhem when Sheldon becomes jealous of Amy; Koothrappali catches Anu with her ex-boyfriend; Stuart doesn't want to move in with Denise.

Penny's ex-boyfriend Zack learns that he is infertile, so he asks Leonard for help; Koothrappali attempts to mend things with his ex-fiancee Anu.

Sheldon and Amy are thrilled when their super asymmetry theory is proven by two physicists, until they try to kick Amy off the Nobel nomination; Bernadette has a big success at work.

Sheldon is thrilled to help Bernadette and Wolowitz navigate bureaucratic paperwork, until he discovers they are breaking the law; Leonard is disappointed when his friends exclude him from a scientific project.

Penny tries to throw a wrench into Leonard's plan to be a sperm donor for her ex-boyfriend; Wolowitz, Bernadette, Anu and Koothrappali turn Koothrappali's canceled bachelor party into a couple's trip aboard the "vomit comet.".

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.

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.

Fun Moms, college volleyball players and God's gift to Wipeout take on the Wipeout course for the chance to win $25,000 and maybe, just maybe, kiss John Cena on the lips.

Zombie scare actors, a blended family, and a pair of hopeful Chiropractors take on the Wipeout course.

Though broke and lovelorn, a woman (Kristen Wiig) takes on the strange and expensive rituals associated with being her best friend's maid of honor.

The family takes a vacation on a ranch in Jackson Hole, Wyo.; Jay faces off with a cowboy.

Mitch and Cam bring the family together to announce their plan to adopt another child.

Jay's relationship with the dog irritates Gloria; Phil and Luke try to master the tightrope; Cameron starts a juice fast.

Jay helps Manny with a school fundraiser; Claire petitions for a stop sign at a busy intersection; Phil and Luke try to create a viral video; Gloria searches for Stella.

Gloria tries to help Jay and Manny with their problems, but both are unreceptive; Claire considers running against Councilman Duane Bailey (David Cross); Cam and Mitch are the victims of a hit-and-run accident.

Phil takes Haley to visit his alma mater; Claire goes out with Mitchell and Cameron; Gloria and Jay may have to broach a delicate subject with Manny.

Gloria insists on a night of salsa dancing with Jay; Cameron goes too far when Mitchell and a friend challenge him to get a hot woman's (Leslie Mann) number; Phil builds a tree house.

Sheldon confronts the failure of his database; Georgie and Mandy struggle as new parents; Missy feels forgotten.

Missy steals her dad George's truck and runs away from her house; she hits the road with her friend Paige.

Georgie goes on a birthday date; Mary confronts Brenda about her relationship with George; Sheldon takes an interest in Missy's favorite TV show.

Sheldon wants to search for life on other planets; Mandy answers Georgie's marriage proposal; Missy is caught between two friends.

Mandy gets an exciting job opportunity; Sheldon worries that he's falling behind; Georgie takes his daughter to work.

The gambling room gets broken into; Sheldon wants to study abroad; Missy makes a new friend.

The group's plans of throwing a birthday party are marred when money becomes an issue; 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 and Ross cook Thanksgiving dinner for themselves, but everyone else shows up.

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

Emotions become the feast of the day when the gang plays a game of touch football on Thanksgiving; the turkey is left stewing when the losing team calls for a rematch.

To atone for kissing Joey's girlfriend, Chandler agrees to stay inside a shipping crate during the Thanksgiving holiday.

As the gang digests Monica's huge Thanksgiving meal, everyone reminisces about their worst Thanksgiving ever.

Ross becomes upset when someone at work takes his sandwich from the refrigerator and eats it; Joey finds himself in a mess when he tries to cover for Chandler and Monica's dating.

Chandler finds out Monica never told her parents he was living with her; Rachel tries her hand at making dessert.

Joey may have ruined Rachel's chances with Tag (Eddie Cahill) when he opens his mouth during Thanksgiving dinner.

Monica encounters a high-school friend (guest star Brad Pitt) and invites him to Thanksgiving Day dinner.

Rachel has a bone to pick with her self-centered sister (Christina Applegate) on Thanksgiving; Monica protects her good wedding china; Joey forgets to join his TV cast mates for the Thanksgiving parade.

Monica prepares a Thanksgiving feast for the gang, then becomes enraged when everyone shows up late; Phoebe convinces Rachel to enter Emma in a baby beauty contest.

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.

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.

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.

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.

Leonard is happy to meet new neighbor Penny, but his roommate thinks he is chasing an impossible dream.

The Griswolds (Chevy Chase, Beverly D'Angelo) spend the holiday in a garish way, especially when a country cousin (Randy Quaid) pulls up in an RV.

Adopted as a baby by one of Santa's elves (Bob Newhart), a man (Will Ferrell) leaves the workshop to search for his family in New York.

Adopted as a baby by one of Santa's elves (Bob Newhart), a man (Will Ferrell) leaves the workshop to search for his family in New York.

A poor boy (Freddie Highmore) and four spoiled children win a tour through the incredible factory of an odd confectioner (Johnny Depp).

A poor boy (Freddie Highmore) and four spoiled children win a tour through the incredible factory of an odd confectioner (Johnny Depp).

Two terminally ill men leave their hospital ward and set out to complete a list of things they want to do before they die.

Two terminally ill men leave their hospital ward and set out to complete a list of things they want to do before they die.

From being overprotective parents to disclosing perplexing side effects, one Joker can't handle the challenges and will learn that all that glitters is not gold.

Q, Murr and Sal throw and catch grocery items in the Joker vs. Joker challenge with special celebrity guest, Jax.

Murr, Q and Sal sit alongside a stranger to participate in a documentary-style interview; they try to upcharge guests again as hotel concierge.

The Jokers bring their plastic newborns to the grocery store; they pitch new community programs that the local community will find quite strange.

The Jokers steal America's babies at the mall; while they lie in wait trying to succeed in an impossible task, Sal, Q and Murr hash on some never before seen clips.

Sal and Murr air out their dirty laundry by sorting out the whites and colors of their relationship through past clips from the "Couples Therapy Special" with Casey Jost, unlicensed therapist.

Murr and Q are going on a trip down memory lane and watching extended never-been-seen-before clips from the last few years.

Fun Moms, college volleyball players and God's gift to Wipeout take on the Wipeout course for the chance to win $25,000 and maybe, just maybe, kiss John Cena on the lips.

Zombie scare actors, a blended family, and a pair of hopeful Chiropractors take on the Wipeout course.

After a fire destroys a neighbor's home, the whole family tries to help by organizing a community drive.

A former neighborhood resident, now rich and successful, returns for a visit; Jay thinks Manny needs constructive criticism; Mitchell questions the authenticity of Cameron's colorful childhood stories.

The family puts together a quick Christmas celebration when they realize they won't be together on the actual day.

When Phil misses a call from his doctor with test results, he immediately assumes the worst; Javier stops by to take Manny to the horse races; Mitchell's winning of an environmental law award sparks a competition.

Claire and Jay's competitive streaks lead them to take over their kids' school projects; Phil asks Haley and Gloria to help him with a presentation; Mitch and Cam meet with prospective birth mothers.

Two terminally ill men leave their hospital ward and set out to complete a list of things they want to do before they die.

When their plans for a holiday getaway fall apart, a couple (Vince Vaughn, Reese Witherspoon) must spend Christmas Day trudging to a quartet of family get-togethers.

The Griswolds (Chevy Chase, Beverly D'Angelo) spend the holiday in a garish way, especially when a country cousin (Randy Quaid) pulls up in an RV.

Adopted as a baby by one of Santa's elves (Bob Newhart), a man (Will Ferrell) leaves the workshop to search for his family in New York.

After a bad day at work, a frustrated reporter meets God, who endows him with divine powers for one week.

A newly elected congressman (Steve Carell) faces a crisis of biblical proportions when God (Morgan Freeman) commands him to build an ark.

A newly elected congressman (Steve Carell) faces a crisis of biblical proportions when God (Morgan Freeman) commands him to build an ark.

When their plans for a holiday getaway fall apart, a couple (Vince Vaughn, Reese Witherspoon) must spend Christmas Day trudging to a quartet of family get-togethers.

When their plans for a holiday getaway fall apart, a couple (Vince Vaughn, Reese Witherspoon) must spend Christmas Day trudging to a quartet of family get-togethers.

Feeling sad and unwanted, Santa takes the day off before Christmas; voices: Mickey Rooney, Shirley Booth; animated.

After a bad day at work, a frustrated reporter meets God, who endows him with divine powers for one week.

Sal, Q and Murr kick off another season of antics by getting themselves stuck in a vent system and confusing customers at a bagel shop; our losing Joker will face humiliation in a punishment that's tough to swallow.

The Jokers are back working as dry cleaners and TV producers, but one of them can't keep it together and must endure concertgoers who have escaped their enclosures.

The Jokers are locked in a supply closet and must decide who's endured the worst punishments to escape; as they argue over physical, embarrassing, and personal punishments, old clips resurface, and tensions rise.

The Jokers face off by recording voiceover for a fake video game and playing the concerned parent writing to their kid's school; but one Joker burns out with a punishment that's gotta sting.

Joey Fatone interviews the Jokers for a fake documentary; the guys react to an overly emotional phone call for an underwhelming reason; one Joker checks out and is forced into being the world's worst grocery store employee in his punishment.

The Jokers hit the grocery store aisles dressed in absurd disguises, then train someone in using aggressive phone tactics for charity donations. The losing Joker must subject themselves to scientific probing into their hidden emotions.

A look at who will triumph with no one to rely on but themselves, Sergeant Stripper, the Swallower, the Cruise Director, or Dances with Whales.

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.

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.

When a doubting young boy takes a train ride to the North Pole, he embarks on a journey of self-discovery that shows him that the wonder of life never fades for those who believe.

The yuletide season brings headaches for Santa Claus, who bails his ne'er-do-well brother Fred out of trouble and puts him to work in his factory.

Feeling sad and unwanted, Santa takes the day off before Christmas; voices: Mickey Rooney, Shirley Booth; animated.

Boris Karloff narrates an animated tale about the lonely and heartless title character who decides to dress up as Santa and steal the Christmas decorations, gifts and feast from the people of Whoville.

Leonard volunteers to sign for a package, hoping to make a good impression on Penny.

Unhappy to learn that Penny is seeing someone, Leonard summons the courage to ask another woman on a date.

Getting fired gives Sheldon the opportunity to explore life beyond physics, but when he spends his time weaving ponchos and acting like a shut-in, Leonard calls Sheldon's mother for assistance.

Leonard, realizing his pursuit of Penny is fruitless, has an unexpected encounter with a fellow scientist (Sara Gilbert).

Leonard, Sheldon, Wolowitz and Koothrappali attend Penny's Halloween party.

Penny sleeps on Leonard and Sheldon's couch when Wolowitz seduces her friend and takes over her apartment; in need of a fourth member, the guys ask Penny to join their "Halo" team.

On a blind date, Koothrappali discovers that he can talk to the opposite sex after a few drinks, but his date takes an interest in Sheldon.

Penny tries to mediate when Sheldon and Leonard disagree on whether to present their joint findings at a physics conference.

Leonard and Sheldon try to avoid seeing Penny perform after hearing her sing, but the elaborate lie Sheldon tells leads to an unexpected result.

The yuletide season brings headaches for Santa Claus, who bails his ne'er-do-well brother Fred out of trouble and puts him to work in his factory.

When a doubting young boy takes a train ride to the North Pole, he embarks on a journey of self-discovery that shows him that the wonder of life never fades for those who believe.

A home-theater installer leads a team of old-school arcade champs and a military specialist in a battle against aliens who base their attacks on 1980s era video games.

Carl (Reginald VelJohnson) tries to cut his own Christmas tree but ends up getting lost in the woods with Steve (Jaleel White).

Laura is excited about joining a sorority until she learns Steve has been named the star of its annual geek party.

Mandy surprises Georgie with a spa weekend; Sheldon prepares for his summer in Germany.

Sheldon and Mary head to Germany while the rest of the Cooper family braves a tornado that is heading straight for Medford.

News of the tornado reaches Sheldon and Mary in Germany; with the Cooper house in chaos, Missy steps up.

Sheldon realizes he is the weakest student in his class; Meemaw looks to expand her gambling business.

Sheldon explores Germany behind Mary's back; Missy attempts to pull a fast one on George Sr.; Meemaw and Dale adjust to living together.

Missy steps up; Mary has a surprise for George; Sheldon finds his dorm occupied.

Ross and Rachel finally sleep together; Monica becomes infatuated with one of her parents' friends for whom she caters a party.

Monica's parents find out about her middle-aged boyfriend; Chandler and Joey argue and it could mean the end of their living arrangement.

Joey wants to move back in with Chandler, but there's a new problem; Phoebe tapes a rock video; Ross upsets Monica.

Monica and Richard experience the same romantic problems as Rachel and Ross; Joey's ill-advised comments to a fan magazine threaten his acting career.

Chandler wants his annoying new roommate (Adam Goldberg) to move out; Joey is facing some exorbitant bills; the girls learn from a book about personal empowerment.

Monica's boyfriend proves to be the life of the party when he attends a basketball game with Chandler and Joey.

Two bullies (Peter DeLuise, Nicky Katt) banish Ross and Chandler from Central Perk; Monica plays the stock market.

Rachel's separated parents (Marlo Thomas, Ron Leibman) unexpectedly attend her surprise birthday party.

Phoebe's romantic meeting with an old friend (Charlie Sheen) is stalled by a case of the chickenpox; Ben celebrates his first birthday; Monica frets about her relationship with Richard (Tom Selleck).

Rachel is a bridesmaid at her ex-fiancé's wedding; she has flashbacks of her own failed wedding day; Monica and Richard's relationship is jeopardized when the subject of children is discussed.

Monica is distraught after her break-up with Richard; Chandler and Janice begin seeing each other again; Ross tells Rachel and Chandler about his "Princess Leia" fantasy.

In a race against the clock, Ross tries to get the gang dressed and ready for a black-tie benefit at the museum.

Leonard and the boys avoid Sheldon when he gets sick, leaving Penny to nurse him back to health.

Sheldon and Leonard look for a way to derail a 15-year-old physics prodigy's research.

When Sheldon tries to prove his mental superiority as they train for the Physics Bowl, the guys kick him off the team and bring his nemesis (Sara Gilbert) aboard.

Leonard devises a plan to eliminate his rivals when he, Wolowitz and Koothrappali all fall for Sheldon's twin sister, but his plan backfires when Sheldon decides to choose who his sister dates.

Penny learns that Leonard does not celebrate birthdays, so she plans a surprise party; Sheldon unexpectedly gets to live out one of his biggest fantasies in an electronics store.

When Leonard finally works up the courage to ask Penny out on a date, they each turn to Sheldon for advice.

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

Sheldon creates a monster when he introduces Penny to online gaming.

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

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 Sheldon bans Penny from the apartment for a series of petty infractions, Penny vows to get revenge.

Leonard inadvertently steals away the new woman Wolowitz thinks is the love of his life.

Sheldon is thrilled when Leonard starts dating a woman who meets Sheldon's stringent standards.

Leonard asks Penny for advice when his new relationship starts moving too fast.

Penny starts dating Leonard's handsome colleague; Leonard and his friends are tortured by Sheldon's obsession with gift-giving etiquette.

Fun Moms, college volleyball players and God's gift to Wipeout take on the Wipeout course for the chance to win $25,000 and maybe, just maybe, kiss John Cena on the lips.

Stan invites his half-brother, Rusty (Lou Diamond Phillips), over for Thanksgiving, then gets upset when he learns how wealthy Rusty is.

Francine invites her adoptive parents to Thanksgiving dinner, ruining Stan's plans to watch football.

Snot teaches Roger about Hanukkah, prompting Roger to convert to Judaism and to try to make Hanukkah more popular than Christmas by stealing Santa Claus' power.

Bullock asks Stan to fill in for him at his class at the CIA Academy and Stan finds the cadets to be the perfect captive audience for his boring stories; Klaus becomes the hype man for a famous rapper.

Frustrated with traffic, Stan goes to the mayor and proposes that the town build a bullet train, but the mayor laughs off the idea; Roger pushes Stan into running for mayor; Stan wins the election but finds himself overwhelmed.

When Steve acts out his sexual energy, Francine asks Stan to give Steve "the talk," but Stan's fear that he won't do it right terrifies him; the family builds a giant water slide in the backyard.

Roger becomes worried about outliving the family; Klaus opens a convenience store in the attic.

Francine falls in with a group of tough girls after becoming the new school guidance counselor. Jeff panics when he loses his hat.

Laura and Maxine realize they can share almost anything, except their affection for Curtis. With Jaleel White.

Carl and Steve (Reginald VelJohnson, Jaleel White) go back in time together, where Carl ignores Steve's warnings and alters history.

Steve's cousin, Myrtle, arrives with her sights set on winning the local beauty pageant and Eddie's affections.

Steve narrates three tales of love, including Carl's attempts to "recycle" Harriette's Valentine's Day card.

Sheldon helps his roommate try to beat the stock market; Missy and Billy Sparks throw a party; Mary finds a new church.

Georgie and Mandy's wedding plans pit Mary against Mandy's mom, with baby CeeCee caught in the middle.

Georgie and Mandy get married.

Sheldon studies to be Meemaw's lawyer when she is put on house arrest; the Coopers have a plumbing emergency.

Sheldon's published paper leads to a frenzy of grad school recruiting; Georgie tries to speak more properly in front of his daughter.

Meemaw gets assigned a tough probation officer; Georgie takes marriage advice from his father-in-law.

Phoebe dates a man who thinks he's stalking her twin sister, Ursula; Ross and Rachel give Chandler "boyfriend" lessons.

Chandler tries to get over his fear of commitment; Phoebe poses as Joey's agent after she forgets to tell him about an audition.

Phoebe tries to bond with her half brother, Frank Jr., by offering to buy a massage; Ross spots Isabella Rossellini; Joey tries to build an entertainment center.

When Janice asks the gang if any of them have ever slept together, the friends flash back to three years earlier.

Joey sees Janice kissing her husband, whom she is divorcing while she dates Chandler; Rachel's father clashes with Ross.

Chandler is devastated after Joey tells him he saw Janice kissing her ex-husband; Monica accidentally bumps Ben's head into a post when she and Rachel babysit; Phoebe is paranoid if she goes to dentist someone she knows will die.

Emotions become the feast of the day when the gang plays a game of touch football on Thanksgiving; the turkey is left stewing when the losing team calls for a rematch.

Rachel wonders if she'll ever get another job after she quits Central Perk; Joey's new job selling Christmas trees upsets Phoebe; Ross accidentally breaks a little girl's leg.

Ross is suspicious about Rachel's possible job offer from a good-looking stranger (Steven Eckholdt); Chandler can't remember which of Joey's many sisters he kissed at a party.

Ross becomes jealous when he hears Rachel's new co-worker (Steven Eckholdt) whispering sweet nothings to her.

Running into Richard at the video store tests Monica's willpower; Joey agrees to read "Little Women.".

Phoebe's ex-singing partner wants to make Phoebe's signature song, "Smelly Cat," a commercial success; Chandler dates a woman with a handicap.

After seeing Penny with a handsome new guy, Leonard rushes into a rebound relationship with Sheldon's nemesis, Leslie Winkle.

When Penny's comment about Wolowitz's love life sends him into a depressed stupor, his friends lose their most important teammate in an upcoming fighting-robot competition.

Sheldon develops a scientific procedure for making friends; Kripke controls a new supercomputer.

Sheldon's solution to Penny's financial difficulty leads to a confrontation between Leonard and Penny's ex-boyfriend.

Leonard and Penny are drawn together after a disastrous visit from Leonard's mother (Christine Baranski).

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.

Penny's home business turns into a complete nightmare when Sheldon takes over.

Penny develops a rivalry with a sexy new female neighbor who threatens her position as queen bee of the building.

Wolowitz and Leonard decide to check out a local bar on Ladies' Night.

Cheesy wrestlers, salsa dancers and a pair of "fast" brothers take on the legendary course looking to score the prize and, for one team, a chance to redeem their father's decadelong legacy.

Fun Moms, college volleyball players and God's gift to Wipeout take on the Wipeout course for the chance to win $25,000 and maybe, just maybe, kiss John Cena on the lips.

Claire prepares for her debate with Duane Bailey; Mitch and Cam try to clean up Lily's language before her turn as a flower girl; Jay blames Stella's strange behavior on Gloria.

Claire thinks Phil's new business partner (Greg Kinnear) is blatantly inappropriate, but Phil doesn't notice; while their house is being fumigated, Cameron and Mitchell stay with Jay and Gloria.

After selling a house to Mitch and Cameron's friends, Claire and Phil plan a celebratory dinner; overindulging in drinks leads to over sharing.

Mitchell ruins one of Jay's proudest moments; Phil overhears something about one of his daughters; Gloria accidentally discovers Claire's secret.

Mitchell feels pressured to make Cameron's birthday extra special; Jay's manliness comes into question; the girls interfere with Phil's leap day plans.

Cameron runs into his estranged ex-clown partner (Bobby Cannavale); another real estate agent (Ellen Barkin) snags a listing that Phil was trying to land; Jay and Gloria are suspicious when Manny makes a new friend.

On Election Day, the family does some last-minute campaigning for Claire; Claire experiences technical difficulties during interviews.

Claire tries to help Luke cope with the death of a neighbor; Phil and Alex spend some time together; Haley throws a party without permission; Cameron's father visits.

Phil buys a car without consulting Claire; Jay is on a mission to get to his high-school reunion with Gloria and Manny; Lily loses her favorite toy on a train.

When the family travels to Disneyland, Phil struggles to keep up with Luke; Claire is stunned when they run into Dylan; Cam and Mitch must curb Lily's new penchant for running.

Sheldon studies to be Meemaw's lawyer when she is put on house arrest; the Coopers have a plumbing emergency.

Sheldon's published paper leads to a frenzy of grad school recruiting; Georgie tries to speak more properly in front of his daughter.

Meemaw gets assigned a tough probation officer; Georgie takes marriage advice from his father-in-law.

George Sr. is worried that Mary wants another baby and gets a vasectomy behind her back; Dr. Linkletter and Dr. Sturgis go to Sheldon for science tutoring.

George Sr. gets an exciting job offer; Sheldon prepares for his move to California.

Sheldon leaves East Texas for the California Institute of Technology following the death of his father, George Cooper Sr.

Young Sheldon ends its seven-year run with a must-see two-episode series finale; Jim Parsons and Mayim Bialik reprise their roles as Sheldon Cooper and Amy Farrah Fowler in an unforgettable hour of television.

Sheldon learns that his high intelligence isn't always helpful growing up in East Texas, where church and football are king.

To appease his mother, Sheldon goes on a quest to make his first friend by following techniques in a self-help book.

George Sr. is rushed to the emergency room; Meemaw comes to baby-sit; the kids have an adventure getting to the hospital on their own.

Sheldon refuses to eat solid foods after a choking scare with a breakfast sausage; he discovers comic books for the first time.

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

Phoebe can't communicate with her new boyfriend, a UN diplomat who doesn't speak English; Ross seeks solace at a party after a bitter fight with Rachel.

A remorseful Ross tries to prevent Rachel from learning his disturbing secret; Monica, Phoebe, Chandler and Joey spend a night eavesdropping.

Excluded from Rachel's ski trip with her pals, lonely Ross visits his ex-wife (Jane Sibbett); Phoebe's cab runs out of gas and the stranded gang turns to Ross for help.

Phoebe's brother wants to marry a woman twice his age; Monica gets a huge tip from an admirer.

Ross is upset when Rachel returns his personal belongings and dates Mark; Monica dates a millionaire.

Monica's aunt dies and leaves her an antique dollhouse that she doesn't want Phoebe to play with; Rachel regrets making a date for Chandler and her boss, Joanna; Joey's interest in Kate intensifies.

Monica considers accepting a dream job in Pete's new restaurant but fears there is more to the deal; Ross makes a sacrifice for Rachel.

The gang goes to the opening night of Joey's plays; Rachel brings a date (Ben Stiller) to make Ross jealous; Joey's play gets terrible reviews, but his co-star provides some comfort.

Afflicted with a mysterious skin condition, Ross seeks advice from Guru Saj; Monica can't decide about Pete.

To her horror, Monica's boyfriend plans to fight; the friends are intrigued by a conversation between two strangers.

The friends stay at a beach house; Phoebe meets someone who knows details about her family; Rachel expresses her jealousy of Ross' uninhibited girlfriend.

Ross dates Rachel again after unwittingly agreeing to take responsibility for their breakup; Phoebe reconciles with her mother; Monica is stung by a jellyfish.

Koothrappali and Leonard take Wolowitz to Las Vegas; Sheldon is forced to bunk with Penny when he gets locked out of his apartment.

Penny makes a surprising revelation about Leonard while on her date with Stuart; Wolowitz finds a critical design flaw in his NASA project.

While Leonard prepares for a three-month science expedition, he and Penny re-evaluate their feelings for each other.

After tampering with Sheldon's Arctic-expedition data, the guys follow him back to Texas, which threatens Leonard's chances for romance with Penny.

Penny and Leonard try to recover from an awkward hookup; Howard and Sheldon make a high-stakes bet.

Howard and Raj hit a Goth nightclub to meet women; Sheldon tries chocolate-based behavior modification on Penny.

Raj faces deportation if he does not find a job; Leonard and Penny deal with Howard as a third wheel.

Sheldon seeks revenge on his nemesis, Wil Wheaton; Wolowitz wants Penny to set him up with one of her friends.

All Elite Wrestling continues to inject new spirit, freshness and energy into mainstream wrestling featuring a world-class roster of diverse male and female wrestlers.

Cheesy wrestlers, salsa dancers and a pair of "fast" brothers take on the legendary course looking to score the prize and, for one team, a chance to redeem their father's decadelong legacy.

Fun Moms, college volleyball players and God's gift to Wipeout take on the Wipeout course for the chance to win $25,000 and maybe, just maybe, kiss John Cena on the lips.

The Jokers can't contain the laughs as they answer survey questions for a new snack food and present the world's worst pharmaceutical ads; the loser will work up a sweat in a punishment that's all pain, no gain.

Attention shoppers; the Jokers make mischief by taking unflattering pictures of grocery store patrons, then posing as horrible employees at the Yeti store; tonight's loser must meat his fate in a punishment.

Gloria and Jay bicker while trying to order lunch at a diner; Claire and Cam have different theories on how to discipline kids; Luke accepts an award under false pretenses.

While Gloria helps Cam and Mitch pursue an adoption opportunity, Jay and Manny baby-sit Lily; Alex attends her first prom; Haley makes a shocking announcement about her plans for the future.

Phil takes Jay on an unconventional fishing trip; Gloria wonders how to break the news about her pregnancy; Dylan temporarily moves in with the Dunphys; Cam and Mitch think about adopting a cat.

Phil gets a vasectomy; Gloria and Jay can't agree on whether or not they should find out the sex of the baby; Mitchell tries to steer Cameron toward getting a part-time job.

Claire and Phil embarrass Haley when they drop her off at college; Manny makes Gloria and Jay take a class; Lily gets into a tussle on her first day of kindergarten.

Phil can't accept that Luke wants to quit magic; Gloria's snoring keeps Jay and Manny awake; Mitch and Cam struggle to deal with their reversed role.

Claire must rein in her enthusiasm for Halloween and keep her celebration kid-friendly; Phil decides to hold an open house on Halloween; Mitch and Cam have a costume party; Gloria's hormones make her more quick-tempered than usual.

Jay and Gloria host a yard sale to help with a school fundraiser; Mitch and Cam vet Alex's new friend; Manny finds a trunk full of secrets.

Cameron watches Alex and Luke while Phil, Claire and Mitchell deal with Haley's arrest; Jay tries to cut short a surprise visit from ex-wife Dede (Shelley Long), so she doesn't learn about Gloria's pregnancy.

When Claire, Manny and Luke go to Alex's academic decathlon for the weekend, Phil throws a guys' night at home; Manny and Luke crash bar mitzvahs looking for a girl; Cam and Mitchell get Jay and Gloria a surprise baby gift.

Cheesy wrestlers, salsa dancers and a pair of "fast" brothers take on the legendary course looking to score the prize and, for one team, a chance to redeem their father's decadelong legacy.

Fun Moms, college volleyball players and God's gift to Wipeout take on the Wipeout course for the chance to win $25,000 and maybe, just maybe, kiss John Cena on the lips.

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

A former neighborhood resident, now rich and successful, returns for a visit; Jay thinks Manny needs constructive criticism; Mitchell questions the authenticity of Cameron's colorful childhood stories.

With Phil and Luke cooking Thanksgiving dinner, Claire decides to prepare a secret back-up turkey; Jay and Gloria's trip is canceled at the last minute; Lily refuses to wear a nice dress to dinner.

Cameron spares no expense for his Thanksgiving jamboree; Hayley tells Phil she'd rather spend the holiday with her new boyfriend; Jay works to keep his blood pressure down; Alex and Dwight get closer.

Jay gives a Thanksgiving toast that honors the family's successes, although everyone knows it isn't quite true; everyone tries to hide things about their perceived triumphs; Phil works hard to master a magic trick to prove he's not a failure.

Cameron and Mitchell's friends mistakenly assume they have split up; Haley attempts to cook Thanksgiving dinner as a thank you for Claire and Phil's support with the twins; Jay invites Phil and Dylan out to fly his model plane.

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

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

Emotions become the feast of the day when the gang plays a game of touch football on Thanksgiving; the turkey is left stewing when the losing team calls for a rematch.

To atone for kissing Joey's girlfriend, Chandler agrees to stay inside a shipping crate during the Thanksgiving holiday.

As the gang digests Monica's huge Thanksgiving meal, everyone reminisces about their worst Thanksgiving ever.

Ross becomes upset when someone at work takes his sandwich from the refrigerator and eats it; Joey finds himself in a mess when he tries to cover for Chandler and Monica's dating.

Chandler finds out Monica never told her parents he was living with her; Rachel tries her hand at making dessert.

Joey may have ruined Rachel's chances with Tag (Eddie Cahill) when he opens his mouth during Thanksgiving dinner.

Monica encounters a high-school friend (guest star Brad Pitt) and invites him to Thanksgiving Day dinner.

Rachel has a bone to pick with her self-centered sister (Christina Applegate) on Thanksgiving; Monica protects her good wedding china; Joey forgets to join his TV cast mates for the Thanksgiving parade.

Monica prepares a Thanksgiving feast for the gang, then becomes enraged when everyone shows up late; Phoebe convinces Rachel to enter Emma in a baby beauty contest.

When the gang decides to spend Thanksgiving at Mrs. Wolowitz's house, Sheldon protests; Leonard and Penny deal with an error from her past.

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.

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

After a tornado whisks Kansas farm girl Dorothy (Judy Garland) to a magic land, she must travel to the Emerald City for help in getting back home.

Feeling sad and unwanted, Santa takes the day off before Christmas; voices: Mickey Rooney, Shirley Booth; animated.

When a doubting young boy takes a train ride to the North Pole, he embarks on a journey of self-discovery that shows him that the wonder of life never fades for those who believe.

When their plans for a holiday getaway fall apart, a couple (Vince Vaughn, Reese Witherspoon) must spend Christmas Day trudging to a quartet of family get-togethers.

Fun Moms, college volleyball players and God's gift to Wipeout take on the Wipeout course for the chance to win $25,000 and maybe, just maybe, kiss John Cena on the lips.

Claire and Phil threaten to take away Christmas when the kids get into trouble; Cameron and Mitchell take Lily to have her first picture taken with Santa.

The family puts together a quick Christmas celebration when they realize they won't be together on the actual day.

Jay and Manny set out to cut down their own Christmas tree; Gloria is on edge when her mother visits; Mitchell does last-minute shopping to find the perfect gift for Lily.