Leonard tells Penny about how he met Sheldon and what happened to the elevator.

Raj and Howard set up an online dating profile for Sheldon and find the perfect woman.

Penny tags along on Sheldon's first date; Wolowitz finds a new use for a robotic arm.

Realizing he will not live long enough to download his consciousness into a robot body, Sheldon tries to extend his life span.

When Sheldon searches for an alternative to human companionship, the guys become concerned.

An embarrassing secret of Wolowitz's is revealed; Raj and Sheldon get into a war at work.

Leonard realizes he is the only one in his group without a girlfriend; Sheldon wants to get rid of his girlfriend.

The government sends the most dangerous supervillains in the world to the remote, enemy-infused island of Corto Maltese. Armed with high-tech weapons, they trek through the dangerous jungle on a search-and-destroy mission with Col. Rick Flag.

Wonder Woman musters all of her strength, wisdom and courage as she finds herself squaring off against Maxwell Lord and the Cheetah, a villainess who possesses superhuman strength and agility.

Everyone hopes to make good first impressions with the new manager, Deangelo Vickers.

Michael teaches DeAngelo (Will Ferrell) how to host the Dundie Awards; Erin struggles with her feelings for Gabe.

NBA star Bam Adebayo pulls WNBA MVP A'ja Wilson into an uncomfortable autograph scandal; Anthony Davis drops NFL star safety Quentin Lake and NFL analyst Jay Glazer into chaos during a competition show gone wrong.

Anthony Davis and Dude Perfect's Cody Jones push Dereck Lively into a game-show disaster, while USC basketball player JuJu Watkins and coach Lindsey Gottlieb prank their team with a fake meeting that leaves them stranded on a haunted abandoned floor.

Joey might declare his love for Rachel, or Phoebe; Rachel breaks a pact with Ross; Chandler becomes mister bubble bath.

Joey realizes his intense feelings for Rachel are excluding Ross from the joys of impending fatherhood.

Monica prepares a memorable St. Valentine's Day for Chandler with sexy lingerie and X-rated entertainment.

Joey confesses his true feelings for Rachel; Phoebe introduces Monica to her new boyfriend (Harry Van Gorkum).

Rachel devises a lie about her unborn child that she hopes will break the silence between her and Joey; Phoebe reads tea leaves and predicts she will soon encounter the man of her dreams.

Phoebe brings her annoyingly upbeat boyfriend to the 35th anniversary of Monica and Ross' parents, who urge Ross and pregnant Rachel to pretend to be married.

When Soap Opera Digest requests an interview, Joey enlists his friends to make sure he does not say anything that could cost him his role.

During her baby shower, Rachel realizes she is unprepared to be a mother and accepts her mother's (Marlo Thomas) offer to move in to help with the child.

A food critic blasts Monica's cooking in a newspaper review; a cute saleswoman riles Rachel when she flirts with Ross; Phoebe coaches Chandler for a job interview.

Monica and Phoebe make a bet after Rachel passes her delivery date; Chandler falls asleep at the premiere screening of Joey's new film.

Rachel goes into labor, enduring endless pain while anxious Ross hovers nearby and her waiting friends wreak havoc in the hospital.

After Rachel gives birth to her baby, she must confront relationship issues around her.

Joey finds himself engaged to Rachel soon after she delivers her baby girl, while Phoebe assumes Ross is the one who proposed; Joey sneaks a peek as Rachel tries unsuccessfully to nurse; Monica and Chandler retire to a supply closet for privacy.

Joey seeks forgiveness from Ross, while Rachel tries to quell Emma's incessant crying.

Emma's pediatrician drops her as a patient because of Rachel's constant calls.

Black Manta wields the power of the mythic Black Trident to unleash an ancient and malevolent force. Hoping to end his reign of terror, Aquaman forges an unlikely alliance with his brother to protect their kingdom and save the world from destruction.

Aquaman must retrieve the legendary Trident of Atlan to save the underwater city of Atlantis -- and the surface world -- from his power-hungry brother.

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 is forced to rely on Sheldon when she is injured while Howard, Leonard and Raj are away.

The guys try to bond with Penny's new boyfriend through a costume contest.

As the guys don costumes and go on a road trip to a comic book convention, the ladies decide to stay home and try to interpret a comic book.

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

Programming to be announced.

Anthony Davis and Dude Perfect's Cody Jones push Dereck Lively into a game-show disaster, while USC basketball player JuJu Watkins and coach Lindsey Gottlieb prank their team with a fake meeting that leaves them stranded on a haunted abandoned floor.

NBA star Bam Adebayo pulls WNBA MVP A'ja Wilson into an uncomfortable autograph scandal; Anthony Davis drops NFL star safety Quentin Lake and NFL analyst Jay Glazer into chaos during a competition show gone wrong.

Worlds collide when the Flash travels back in time to change the events of the past. However, when his attempt to save his family alters the future, he becomes trapped in a reality in which General Zod has returned, threatening annihilation.

Aquaman must retrieve the legendary Trident of Atlan to save the underwater city of Atlantis -- and the surface world -- from his power-hungry brother.

Eddie and Waldo share an apartment; Steve tries to be a son to Carl.

Helping a homeless man traps Urkel and Carl in a bomb shelter.

A cool fraternity tells Eddie to lose Steve as a friend.

When Sheldon is no longer academically challenged at Medford High, he audits a college class taught by Dr. John Sturgis.

A battle erupts in the neighborhood between the Coopers and the Sparks when Sheldon is terrorized by the Sparks' new dog.

Meemaw is pursued by gentlemen callers; she is forced to set ground rules when Sheldon interferes.

Sheldon dismantles the refrigerator to stop it from humming; he gets a paper route to pay for its repair.

Sheldon becomes jealous when Dr. Sturgis bonds with Paige, another ten-year-old genius; Mary invites Paige's family over for a playdate.

When Mary's faith is shaken by a tragedy in the community, Sheldon becomes an unlikely ally.

Monica fears Chandler has a sexual fetish involving sharks; Phoebe fears losing her boyfriend.

While Phoebe and Joey wait at a fancy restaurant to celebrate Phoebe's birthday, Rachel is afraid to leave her infant with a babysitter; Monica and Chandler also fail to arrive on time after they fight over Chandler's urge to resume smoking.

Ross mocks Rachel's new male nanny (Freddie Prinze Jr.); Chandler becomes upset when Monica says that somebody from her job is the funniest guy she's ever met.

Chandler and Joey find a videotape while checking out Richard's apartment; Ross sings Emma an off-color lullaby.

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.

Rachel impulsively gives her telephone number to a handsome guy but worries he will call when Ross is there.

Monica fears the worst when she learns Chandler will be spending Christmas in Tulsa working on a deadline with a beautiful co-worker (Selma Blair).

Rachel crosses swords with her temporary replacement (Dermot Mulroney) at the shop; Phoebe wreaks havoc on the set of Joey's soap opera.

Monica invites Rachel's workplace rival (Dermot Mulroney) to her birthday party; Joey flirts with Emma's new nanny (Melissa George); Phoebe and Mike (Paul Rudd) take care of a litter of rats.

Monica exults in the applause she receives on karaoke night, unaware that the cheering audience can see through her blouse.

Joey and Phoebe conspire to send Rachel and Ross on disastrous blind dates; the ovulating Monica wants to get intimate with Chandler.

Joey stumbles upon a way to impress a famous actor (Jeff Goldblum) during an audition; Ross learns the identity of a long-ago mugger; Chandler accepts an internship at a shoe company.

Leonard keeps an affair a secret from Sheldon, Howard and Raj.

Sheldon's interview with the FBI jeopardizes Wolowitz's security clearance.

While the guys camp out for a long-awaited movie screening, Penny and Bernadette invite Amy to her first slumber party.

Penny asks Leonard to lie to her father (Keith Carradine); Howard, Raj and Bernadette pull an all-nighter at a telescope.

Amy realizes she has feelings for Penny's ex; Koothrappali and Wolowitz try to prove who would be a better superhero.

The guys try to bond with Penny's new boyfriend through a costume contest.

Leonard's idea for a smartphone application causes friction in his friendship with Sheldon.

Bernadette runs into her ex-boyfriend (Rick Fox) while attending a science event with Wolowitz.

Sheldon takes acting lessons from Penny in hope of becoming a better teacher; Koothrappali fantasizes about his friend's girlfriend.

A wealthy donor makes Leonard question what he is willing to do for science.

Turning the tables on the locker-room dynamic, athletes from all sports pull pranks on their teammates and sports-world friends; the team behind "Impractical Jokers" helps them see the prank through from the opening tip-off to the final buzzer.

Anthony Davis and Dude Perfect's Cody Jones push Dereck Lively into a game-show disaster, while USC basketball player JuJu Watkins and coach Lindsey Gottlieb prank their team with a fake meeting that leaves them stranded on a haunted abandoned floor.

Sheldon is upset when he realizes Leonard is the center of their group of friends.

Leonard has to choose between Penny and his new girlfriend, Priya; Howard's magic trick drives Sheldon crazy.

Michael wants a drama-free day to say goodbye to his friends; Deangelo and Andy work to keep Michael's most-important clients.

Michael wants a drama-free day to say goodbye to his friends; Deangelo and Andy work to keep Michael's most-important clients.

Deangelo plays favorites by creating an inner circle of most liked employees, and the women notice it seems to be all guys.

Dwight uses his position as acting manager to employ harsh policies in the office; Gabe tries to get Erin back.

Jim heads a team that interviews applicants, including several co-workers; Dwight tries to reassert himself as a contender.

Jim heads a team that interviews applicants, including several co-workers; Dwight tries to reassert himself as a contender.

The staff go into frantic speculation after accidentally discovering a list of their names in a notebook belonging to the mysterious new CEO.

The Scranton branch staff are challenged to double their sales; Andy decides to create an incentive program, but might end up regretting his promise.

After the warehouse employees win the lottery and quit their jobs, everyone in the office fantasizes about winning big; Darryl and Andy look for new warehouse workers.

When Andy decides to throw a garden party at Schrute Farms to impress Robert, Dwight researches how to be a good host; Andy's family makes him feel self-conscious.

Erin tries to put on a Halloween party that will please both Andy and Robert California; Jim and Pam fight about the existence of ghosts; Dwight bonds with Robert California's son.

Dwight installs a device in the office that will get everyone fired if they make too many errors; Gabe takes a liking to an employee at the warehouse.

Pam teams up with Dwight to prove that Jim thinks her temporary replacement is pretty; Robert California asks to join Andy, Darryl and Kevin's band.

Andy tries to motivate the staff by taking them on a field trip to Gettysburg; Robert asks those who stay behind to come up with the company's next big idea.

In a Halloween tale, Urkel is a medieval duke battling vampires.

On the golf course, Steve accuses Carl of kissing up to his boss; Laura misses her curfew.

When George Sr. asks Sheldon to keep a secret from Mary, the stress of not being honest drives Sheldon to hide out at Tam's for his first sleepover.

Dr. Sturgis recommends Sheldon and Missy for a university research study on twins; Mary is unhappy when the test results go to Sheldon's head.

Mary clashes with Sheldon's drama teacher Mr. Lundy over plans for a Halloween haunted house fundraiser for the church; Georgie falls for a rebellious teenage girl whom Sheldon is tutoring.

Sheldon gets into trouble with fellow child genius Paige at the science museum; George Sr. is forced to play therapist to Paige's bickering parents; Mary, Georgie and Missy help Meemaw with a garage sale.

A video game takes over Sheldon and Meemaw's life; George Sr. is jealous when Georgie bonds with Herschel at the auto shop.

Sheldon studies his family for a psychology project; a Thanksgiving dinner turns into a family fight when George Sr. is offered a job in Oklahoma.

Both Monica and Chandler secretly approach Joey for a loan; Phoebe invites Mike (Paul Rudd) to move in with her; Rachel baby-proofs the apartment.

Ross and Chandler trade barbed insults on their alma mater's Website; Phoebe's resolve not to call ex-boyfriend Mike (Paul Rudd) weakens.

The gang buys scads of lottery tickets for the multimillion-dollar jackpot; Rachel suspects baby Emma is on the verge of saying her first word.

Rachel's visit to a soap opera set inspires her to dream about Joey; Chandler takes Ross on a weekend getaway after Monica cannot take time off from work.

Ross invites an attractive paleontologist (Aisha Tyler) to a rooftop "Days of Our Lives" party being thrown by Joey.

Monica and Chandler run into an old acquaintance when they secretly go to a fertility clinic; Ross helps Joey woo the same professor (Aisha Tyler) he wants to date.

Monica and Chandler interview unsuspecting candidates, hoping to find the right man to father their baby.

The gang heads to Barbados for a paleontology convention where Ross is the keynote speaker; David (Hank Azaria) prepares to propose to Phoebe, but ex-boyfriend Mike (Paul Rudd) is not yet out of the picture.

The gang heads to Barbados for a paleontology convention where Ross is the keynote speaker; David (Hank Azaria) prepares to propose to Phoebe, but ex-boyfriend Mike (Paul Rudd) is not yet out of the picture.

In Barbados, Monica, Chandler and Phoebe eavesdrop on their friends' passionate encounters; Monica styles her hair to look like a blowfish; Phoebe and Mike rekindle their romance.

Ross drinks too much alcohol at dinner with Rachel, Joey and Charlie; Frank Jr. (Giovanni Ribisi) cannot cope with his precocious triplets.

Rachel and Joey nervously anticipate their first real date; Monica and Phoebe try to avoid an obnoxious friend with a fake British accent; Ross emerges from a tanning booth with a two-toned appearance.

The guys try to figure out who hacked Sheldon's online-game account.

Amy and Sheldon spread gossip as part of an experiment; Howard decides to take a big step in his relationship with Bernadette.

Priya dissects the roommate agreement; the ladies take Sheldon dancing.

Raj tries to cure his social anxiety; Penny spies on Leonard and his girlfriend through Bernadette.

Howard's mom winds up in the hospital after hearing news of her son's engagement to Bernadette.

Major League Baseball pregame analysis.

From Yankee Stadium in the Bronx, N.Y.

Major League Baseball postgame interviews, analysis and highlights.

Robert California brings his wife (Maura Tierney) into the office to find her a job; Dwight opens a gym in the building.

Andy tries to make holiday wishes come true; Robert decides to drown his sorrows at the office party.

Andy gets the office involved in a trivia contest; Dwight explores job opportunities at Sabre headquarters.

When Robert decides to sell his mansion, Kevin suggests he throw a pool party for the office; Erin flirts with Dwight to get Andy's attention; Robert gives a tour of his home.

When Jim returns from jury duty Dwight questions him about the case; Angela and the senator welcome their new baby.

When Dwight receives a special assignment in Tallahassee, he and Andy must decide which Scranton employees will go with him; Pam returns from maternity leave.

In Tallahassee, Fla., Dwight tries to impress Sabre's special projects president; Andy tries to avoid requests for raises.

Dwight and Packer compete for a job; Jim receives an unwelcome visitor; Andy has everyone stay late to cover for their co-workers in Florida.

Dwight tries to impress Nellie with a theatrical presentation at the Sabre store opening; Andy suffers from an embarrassing injury.

After Robert reveals his contempt for Nellie's (Catherine Tate) business plan, Jim tries to save Dwight's job; Andy discovers that Erin isn't returning to Scranton.

Andy drives across the country to get Erin; Nellie shows up and tries to claim the manager position.

Robert forces the office to throw a welcome party for Nellie; Erin helps Andy practice how he will break up with Jessica.

After returning from his romantic quest, Andy battles with Nellie for the manager's chair; Kelly has a difficult time choosing between Ryan and a perfect man (Sendhil Ramamurthy).

Andy crashes a fundraiser and ends up adopting 12 dogs; Dwight learns that an auction winner loses money; Nellie learns how to eat a taco.

Andy tries to jumpstart his comeback; after Robert drunkenly shuts down a local branch, Jim and Dwight join forces in hope of outsmarting a salesman.

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.

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.

When Sheldon learns that people with stunted childhoods can turn into social outcasts, he tries to act like a kid; Meemaw and Dr. Sturgis' relationship is tested when she teaches him how to drive.

Sheldon experiments on Missy; Georgie joins Mary's bible study to spend more time with his crush, Veronica.

When Sheldon has to spend a few days in the hospital, he turns into the world's worst patient; Missy gets a taste of what life would be like without her twin.

Sheldon attempts to build a nuclear reactor; a university cocktail party gets heated when Dr. Sturgis' colleague flirts with Meemaw; Georgie is heartbroken when he learns Veronica has a boyfriend.

Sheldon uses his new friendship with the school bully to boss Georgie around; Missy steals Meemaw's makeup for picture day.

Sheldon and Dr. Sturgis have their first fight when Dr. Sturgis marks an answer wrong on Sheldon's test; Mary takes over for Pastor Jeff when he's out sick.

Rachel gets Monica and Chandler to delay their trip to Vermont for Emma's first birthday bash.

Rachel feels like her younger sister, Amy, is finally on the verge of making a major change in her attitude; in order to help Amy become a more responsible person, Rachel overrides Ross' strong protests and allows Amy to baby-sit Emma.

When Ross interviews with Charlie's ex-boyfriend (Greg Kinnear) for a prized grant, the doctor makes a shocking stipulation; Chandler lies about watching Joey's bizarre audition tape.

Monica and Chandler fuss over their apartment as they expect a visit from the adoption worker, Laura; Phoebe and Mike opt for a small wedding and donate the extra money to a children's charity.

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.

A prospective birth mother (Anna Faris) labors under a misconception about Monica and Chandler's respective occupations.

Rachel and Phoebe spot Chandler getting into a car with a mystery blonde; the friends reminisce about memorable moments.

Joey appears as a celebrity contestant on "$100,000 Pyramid"; Monica and Rachel hire an ungainly stripper for Phoebe's bachelorette party.

A blizzard causes Phoebe and Mike's wedding to spiral out of control; uptight Monica steps in as her friend's wedding planner, then drives everyone crazy.

Monica and Chandler show Erica the tourist sights; they learn their baby's biological father might be an unsavory character; Joey begs Phoebe to teach him how to speak French before an audition.

Rachel goes to a job interview at a restaurant and winds up sitting next to her current boss; Joey feels abandoned because Monica and Chandler are leaving.

Ross tries to win back Rachel's job with her former fashion employer; Phoebe tries to keep Joey from learning about his agent's death; Monica and Chandler make a horrifying discovery.

Bernadette gets her Ph.D., inspiring the guys to tease Wolowitz about his lack of a doctorate; Raj becomes Sheldon's roommate.

Penny worries that she has ruined her relationship with her friends; Sheldon takes over the paintball team.

Amy is caught in the middle when Penny and Sheldon get into an argument over a pre-owned chair; Leonard tries to make his long-distance relationship more exciting.

Amy and Leonard try to become better acquainted; Bernadette, Howard and Mrs. Wolowitz spend the weekend together.

Raj wants a girlfriend, so Penny introduces him to a woman he can communicate with.

Wil Wheaton invites Leonard and Sheldon to a party at his house; Howard receives an opportunity.

Sheldon finds himself competing with the gang for his mother's (Laurie Metcalf) attention when she visits.

An attractive comic book artist tests Leonard and Priya's relationship; Sheldon tries to scare his 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.

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

Turning the tables on the locker-room dynamic, athletes from all sports pull pranks on their teammates and sports-world friends; the team behind "Impractical Jokers" helps them see the prank through from the opening tip-off to the final buzzer.

Andy tries to jumpstart his comeback; after Robert drunkenly shuts down a local branch, Jim and Dwight join forces in hope of outsmarting a salesman.

A former boss helps Andy go undercover and stage a coup; a new opportunity arises for Robert.

Two new, young employees throw Dwight and Jim off balance; Andy returns from leadership training with a desire for revenge.

A toast at Roy's wedding leads to Pam and Jim searching their relationships for buried secrets; Dwight reacts to Nellie's mandatory charity initiative.

As Andy flaunts a discovery he made about his ancestry, Darryl struggles in his new role; Dwight teaches a language to Erin, who wants to impress her boyfriend's educated family; Jim reveals a secret.

When Jim convinces Dwight the building is unsafe, Dwight rents a bus to use as his office; Nellie asks for Andy's help; Jim uses pie to cheer Pam.

Andy invites his old a cappella group to perform for Halloween, which leads to a confrontation with his frenemy; Dwight tries to track down a madman in the office; Jim and Pam fight over his new job.

Andy must step up when his dad loses all his family's money; when Dwight is a guest on a radio show, his co-workers call in to torture him; Kevin learns a secret about Oscar.

The women of the office try to teach Dwight how to interact with female clients; Angela suspects the senator of cheating; Toby convinces some of the guys to grow mustaches.

When Angela finds out about her husband's affair, she goes to Dwight for help; Stanley and Phyllis take advantage of Jim when he needs a favor; Pete distracts Pam as she begins painting her mural.

Dwight picks up the slack when the party planning committee fails to plan a Christmas party; Darryl worries Jim has forgotten the promise he made; Pete teaches Erin about "Die Hard.".

Pam accidentally brings lice into the office but lets Meredith take the blame; Jim spends a great day in Philadelphia with a potential business associate; Nellie, Phyllis and Kevin interfere with Darryl's love life.

Everyone abuses the office's new espresso machine; Dwight takes Clark on a sales call; Darryl goes for an interview at Jim's company; Pam surprises Jim with a visit.

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.

Everyone abuses the office's new espresso machine; Dwight takes Clark on a sales call; Darryl goes for an interview at Jim's company; Pam surprises Jim with a visit.

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.

Things spiral out of control when Sheldon boycotts his favorite bread company; Georgie offers Veronica a shoulder to cry on when she's dumped by her boyfriend.

Inspired by his hero, Albert Einstein, Sheldon tries his hand at the violin; Mary and Meemaw secretly buy a pregnancy test when Mary thinks she's pregnant.

Sheldon moves in with Dr. Sturgis for the weekend to see what his life will be like in college; a lonely Mary tries to bond with the other Coopers during Sheldon's absence.

Unhappy that school funds are going toward football rather than academics, Sheldon decides to run for class president.

Georgie is thrilled when Veronica stays at the Coopers' house for a few days; Meemaw and Dr. Sturgis celebrate their one-year anniversary.

The Coopers help Pastor Jeff through a rough patch in his marriage; Sheldon pressures church members for donations when Mary takes him to work for a day.

One of the guys becomes offended when Rachel does not give him the same goodbye she gives the others.

The six friends prepare to say goodbye and embark on the next chapters of their lives; momentous events and last-minute surprises.

The six friends prepare to say goodbye and embark on the next chapters of their lives; momentous events and last-minute surprises.

Monica's high-school friend visits after leaving her fiancé at the altar.

Monica begins to feel the heat when she prepares dinner for her parents (Elliott Gould, Christina Pickles).

Monica finds it difficult to break up with her latest boyfriend (Geoffrey Lower), whom everyone likes; Chandler starts smoking again; Phoebe receives a large sum of money.

While the men attend a hockey game and end up at a hospital, the women spy on President Clinton's top aide, George Stephanopoulos, who lives across the street.

Chandler and Phoebe plan to dump dates on the same night at the same coffee house.

An agent (June Gable) offers Joey a movie role as Al Pacino's naked body double; Chandler dates a liberal woman (Sofia Milos).

Chandler finds himself trapped in an ATM vestibule with model Jill Goodacre during a city-wide power failure.

Monica and Ross share their feelings about death and their grandmother.

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

Amy is devastated when Penny and Bernadette shop for wedding dresses without her.

Leonard and Penny spend time alone; Sheldon tries to face his fear of birds.

Sheldon is jealous when Stuart (Kevin Sussman), a guy from the comic book store, asks Amy out on a date.

Leonard must face the bully who targeted him in high school; Penny confronts her past actions.

Amy is upset with Sheldon when he isn't impressed with her recent accomplishment; Howard struggles with Bernadette's aversion to children.

Everything could change when Leonard spontaneously invites Penny to a romantic dinner.

Penny and Leonard experiment with their new relationship; Raj forms a bond with his phone's virtual assistant.

Leonard starts to reconsider his friendship with Sheldon; Wolowitz tries to choose his astronaut nickname.

Sheldon goes to work with Amy in her neurobiology lab when the university forces him to take a vacation; Bernadette asks Howard to sign a prenup.

Sheldon and his nemesis, Kripke, compete for a corner office; Penny feels uncomfortable after receiving a gift from Amy.

Sheldon's routine is turned upside down when his barber gets sick; Wolowitz questions his decision to go into space.

Sheldon chooses to participate in a guys-only weekend Star Wars gaming marathon rather than go with Amy to her aunt's birthday party; he gets a lesson from Penny and Amy.

When Penny buys Leonard and Sheldon "Star Trek" collectibles, Sheldon finds himself haunted by Mr. Spock; after a blind date, Raj believes he has met his future wife.

When Stephen Hawking comes to lecture at the university for a week, Wolowitz is given the task of maintaining his wheelchair, making Sheldon green with envy.

David Wallace asks Dwight to find a new part-time salesman who will fill in for Jim; Pam looks for a new desk mate; Erin searches for her birth parents.

Nellie and Dwight spring into action when Pam needs help finding the vandal who defaced her mural; Darryl has a hard time dealing with Jim's habits.

The staff pairs off into pretend couples so they can take advantage of a Valentine's Day discount at a minimall; Erin claims she will break up with Andy when he returns, but Pete has his doubts.

During an interview for a job in Philadelphia, a manager gives Pam déjà vu; Dwight asks Angela to join him on a mission; Andy returns from his trip.

During an interview for a job in Philadelphia, a manager gives Pam déjà vu; Dwight asks Angela to join him on a mission; Andy returns from his trip.

Dwight takes a trip home for a Schrute funeral; Todd Packer tries to make up for a lifetime of bad behavior.

The office employees are excited when TV commercials for the documentary begin airing; Angela is jealous when Dwight starts dating a farmer; Jim meets with professional baseball player Ryan Howard.

The elevator goes out at the office, forcing everyone to use the stairs; Dwight forces Stanley to make a sales call; Pam and Jim talk to Nellie and Toby about relationship problems; Angela supports her man.

Dwight and Angela compete in a paper airplane contest; Andy prepares for an acting role; Jim and Pam use new skills.

Andy decides to quit his job and pursue his dream; Dwight has his best day ever at work; Jim comes back to Scranton to spend more time with Pam.

Andy decides to quit his job and pursue his dream; Dwight has his best day ever at work; Jim comes back to Scranton to spend more time with Pam.

As everyone prepares for the premiere of the documentary, Jim convinces Dwight that he needs to hire an assistant to the assistant to the regional manager; after being turned away at daycare, Angela brings her baby to work.

In a spy-movie spoof, Stan must stop a diabolical film producer who abducts celebrities and makes movies that can kill.

Stan's mother comes running to him for support after another one of her boyfriends dumps her out of the blue.

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.

Sheldon invites the entire school to a party for the Nobel Prize announcements; Meemaw learns more about Dr. Sturgis' past; Georgie's desire for cable TV leads to a standoff between him and George Sr.

After Dr. Sturgis experiences a nervous breakdown, Mary worries Sheldon is headed down a similar path; Georgie discovers he has a knack for sales.

Without Dr. Sturgis' university class, Sheldon must find a new way to stay academically challenged; Mary helps Pastor Jeff avoid temptation with his girlfriend.

Sheldon takes matters into his own hands when Meemaw refuses to drive him to a lecture; Georgie tries to impress Veronica with his new business venture.

Sheldon is forced to take a break from science when his new obsession with "The Lord of the Rings" leads to an unhealthy habit; Missy asks George Sr. to teach her how to play catch.

After being released from the mental hospital, Dr. Sturgis unexpectedly breaks up with Meemaw.

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

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

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

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

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

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

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

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.

Knowledge of Howard's sexual history makes Bernadette reconsider their future together.

Wedding plans are jeopardized when NASA reschedules Howard's mission; Leonard says something in the bedroom that surprises Penny.

The gang tries to help Wolowitz and Bernadette get married before the space launch.

Raj faces his loneliness when his friends are out on dates; while in space, Wolowitz gets drawn into a fight between Bernadette and his mom.

Sheldon tries to intervene when he learns that Penny is thinking about breaking up with Leonard; Howard is picked on in space by the other astronauts.

Amy feels threatened by Sheldon's new assistant; Wolowitz starts to feel the pressures of being in space.

Wolowitz's return from space isn't all he expected; game night becomes a gender war.

The gang heads to Stuart's comic book store to celebrate Halloween; Leonard uses science to seduce Penny.

A game threatens Sheldon's relationship with Stephen Hawking; Penny secretly signs up for a college class.

Bernadette wants Wolowitz to move out of his mom's house; Sheldon is caught in the middle of Amy and Wil Wheaton's argument.

Raj and Howard try to figure out why Sheldon disappears at 2:45 every afternoon; jealousy arises in Penny and Leonard's relationship.

Sheldon and Wolowitz's fight over a parking spot at the university impacts the whole gang.

An entrepreneur invites scientists (Sam Neill, Laura Dern), a mathematics theorist (Jeff Goldblum) and others to his jungle theme-park featuring dinosaurs regenerated from DNA.

Owen and Claire return to the island of Isla Nublar to save the remaining dinosaurs from a volcano that's about to erupt. They soon encounter terrifying new breeds of gigantic dinos while uncovering a conspiracy that threatens the entire planet.

An entrepreneur invites scientists (Sam Neill, Laura Dern), a mathematics theorist (Jeff Goldblum) and others to his jungle theme-park featuring dinosaurs regenerated from DNA.

As everyone prepares for the premiere of the documentary, Jim convinces Dwight that he needs to hire an assistant to the assistant to the regional manager; after being turned away at daycare, Angela brings her baby to work.

Past and present Dunder Mifflin employees gather for a wedding and a final round of interviews.

Past and present Dunder Mifflin employees gather for a wedding and a final round of interviews.

When a documentary crew comes to Dunder Mifflin to learn about modern management, manager Michael Scott tries to paint a happy picture of his domain, but his jokes keep falling flat.

Michael's offensive behavior prompts the company to sponsor a seminar on racial tolerance and diversity; Jim has trouble securing his biggest yearly commission.

When forced to pick a cheaper health care plan, Michael, rather than lose popularity points with his staff, shirks the responsibility to Dwight.

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

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

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

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

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

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

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

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

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

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

Dinosaur expert Dr. Alan Grant and a search party become trapped on an island of prehistoric predators. Can they escape alive with Dr. Alan Grant leading the party?

Four years after "Jurassic Park," mathematician Ian Malcolm ventures onto a second island to save his girlfriend from becoming dinosaur bait.

Owen and Claire return to the island of Isla Nublar to save the remaining dinosaurs from a volcano that's about to erupt. They soon encounter terrifying new breeds of gigantic dinos while uncovering a conspiracy that threatens the entire planet.

When Amy gets sick, Sheldon tries to nurse her back to health; Wolowitz and his father-in-law plan a fishing trip.

During a game, Sheldon revisits Christmas memories; Amy, Penny and Bernadette look for a date for Koothrappali.

When Sheldon is accused of sexual harassment, he ends up getting Raj, Leonard and Wolowitz in trouble.

As the guys don costumes and go on a road trip to a comic book convention, the ladies decide to stay home and try to interpret a comic book.

Sheldon faces a crisis of confidence when he is forced to work with his nemesis, Barry Kripke; Raj and Howard buy expensive action figures of themselves.

Turning the tables on the locker-room dynamic, athletes from all sports pull pranks on their teammates and sports-world friends; the team behind "Impractical Jokers" helps them see the prank through from the opening tip-off to the final buzzer.

Anthony Davis and Dude Perfect's Cody Jones push Dereck Lively into a game-show disaster, while USC basketball player JuJu Watkins and coach Lindsey Gottlieb prank their team with a fake meeting that leaves them stranded on a haunted abandoned floor.

Four years after "Jurassic Park," mathematician Ian Malcolm ventures onto a second island to save his girlfriend from becoming dinosaur bait.

Dinosaur expert Dr. Alan Grant and a search party become trapped on an island of prehistoric predators. Can they escape alive with Dr. Alan Grant leading the party?

Anthony Davis and Dude Perfect's Cody Jones push Dereck Lively into a game-show disaster, while USC basketball player JuJu Watkins and coach Lindsey Gottlieb prank their team with a fake meeting that leaves them stranded on a haunted abandoned floor.

Turning the tables on the locker-room dynamic, athletes from all sports pull pranks on their teammates and sports-world friends; the team behind "Impractical Jokers" helps them see the prank through from the opening tip-off to the final buzzer.

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.

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.

A page from the diary of John Wilkes Booth implicates Ben Gates' great-great-grandfather as a major conspirator in the assassination of President Lincoln.

An adventurer (Nicolas Cage) must steal the Declaration of Independence and use its hidden map to find a legendary fortune.

A page from the diary of John Wilkes Booth implicates Ben Gates' great-great-grandfather as a major conspirator in the assassination of President Lincoln.

A fight between Sheldon and Leonard impacts Amy and Penny's living arrangements; while Howard is away, Raj helps Mrs. Wolowitz out.

The guys search for a perfect Valentine's Day gift for their significant others; Stuart and Raj host a "lonely people" party at the comic book store.

After a bad date, Koothrappali decides to never leave his apartment; Penny's acting skills impress Sheldon.

Leonard, Sheldon and Wolowitz talk to junior high girls about science-related careers; Raj plans a date with Lucy.

Howard considers whether he should open a letter from his father; Penny and Leonard host a "grown-up" cocktail party.

An adventurer (Nicolas Cage) must steal the Declaration of Independence and use its hidden map to find a legendary fortune.

Two pilots and lifelong friends (Ben Affleck, Josh Hartnett) fall for the same woman, but must put aside their differences when the Japanese attack their naval base on Dec. 7, 1941.

Urkel, who fears water, must pass a mandatory swimming course.

Steve and Myra run into trouble when they pull over to park; Carl thinks he is a lousy lover.

A church carnival leads Missy to try out for the baseball team; Meemaw struggles after her breakup with Dr. Sturgis.

Sheldon starts an internet flame war; Missy stands up to the boys on her baseball team; Meemaw is unhappy when George Sr. spends time with her new boyfriend.

The University makes George Sr. a lucrative job offer in hopes of recruiting Sheldon; Georgie gets a job working for Meemaw's new boyfriend; Mary is determined to rid her home of greed.

Mary gets Pastor Jeff involved when Sheldon isn't invited to Billy's birthday party; George Sr. has male bonding time with Dr. Sturgis.

Sheldon fakes being sick to avoid a swim test at school; Dr. Sturgis spies on Meemaw's new boyfriend.

George Sr. and Meemaw struggle to manage the Cooper household; Mary plans Pastor Jeff's wedding.

A Treasury agent (J.K. Simmons) closes in on a brilliant freelance accountant (Ben Affleck) who works for dangerous criminal organizations.

Two pilots and lifelong friends (Ben Affleck, Josh Hartnett) fall for the same woman, but must put aside their differences when the Japanese attack their naval base on Dec. 7, 1941.

The girls get involved when Leonard, Sheldon and Raj compete for tenure at the University.

Amy tries to help Sheldon get over his compulsive need for closure when one of his favorite TV shows is canceled; Raj discovers a secret about Lucy.

Leonard and Sheldon hire the host (Bob Newhart) of their favorite childhood TV show to perform; Bernadette and Howard run into trouble while dog-sitting for Raj's pet.

Amy and Sheldon's relationship takes a surprising turn during a game of "Dungeons & Dragons"; Lucy and Koothrappali have an awkward date.

Sheldon and Penny share secrets while Leonard is away; Wolowitz helps Raj get over his ex.

Leonard and Sheldon's friendship is tested; Wolowitz's relationship with his mom causes a threat to his masculinity.

Raj designs a scavenger hunt that brings out the best -- and the worst -- in the whole gang.

Sheldon wants revenge after Amy ruins one of his favorite films; Leonard finds a way to get Penny to do anything; Stuart and Raj make online dating profiles.

Sheldon and Amy's relationship is tested when she takes a job at his university; a fight with Bernadette leaves Howard sleeping on Raj's couch.

Sheldon's latest scientific breakthrough leaves him feeling like a fraud; a romantic gesture between Howard and Bernadette causes Penny to up her game with Leonard.

Anthony Davis lures former NFL defensive lineman Gerald McCoy into a movie audition where he damages superhero memorabilia.

Anthony Davis pranks NFL linebacker Daiyan Henley with a lost-pet charity; pro-wrestler Sting pushes Darby Allin into a tense moral standoff.

When a mistake comes to light, Sheldon makes Leonard walk a mile in his shoes; Penny decides to confront Raj's ex.

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

Michael tries to raise employee morale with a birthday party amid rumors of downsizing.

Michael and gang play the warehouse workers in a not-so-friendly game of basketball; Michael bets that the losers will have to work on Saturday.

Dwight, Michael and Jim all vie for the attention of an attractive woman who comes to the office to sell purses.

The Dunder Mifflin employees suffer through the annual office awards ceremony, The Dundies, hosted by Michael at their local watering hole, a Chili's restaurant.

Corporate office requires the staff go through sexual harassment training, but Michael worries that the new policy will make the office less fun for everyone.

While Michael and Dwight are away from the office, Jim and Pam organize an office Olympics where employees compete in ridiculous games.

A small fire in the kitchen forces the staff to wait in the parking lot; Jim suggests a game of Desert Island; Michael tries to impress Ryan.

Halloween is not much fun for Michael when he learns he must fire someone; Jim and Pam put Dwight's CV on the internet.

When Dwight karate-chops Michael in the stomach at work, a lunchtime rematch is quickly organized; things become awkward between Pam and Jim.

Michael and Jan try to land a new client by taking him out to Chili's; back in the office, Jim finds a script written by Michael and the workers cannot resist acting it out.

Everyone is on edge during performance review, including Michael, who steals the employee suggestion box to get ideas he can present to his boss.

When Michael begins monitoring their e-mails, he manages to upset all the employees.

After Michael suggests a game of "Yankee Swap" with the Secret Santa gifts, everyone fights over Michael's gift to Ryan, bringing morale to an all-time low.