The Big Bang Theory · Season 6 24 Episodes

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Whether on or above Earth, hilarity is outrageously universal in TV's most popular comedy featuring four forward-thinking but socially backward geniuses. Fun discoveries multiply: Leonard learns jealousy is bad for a relationship (with Penny) but science is good for seduction (of Penny). Howard finds life in the International Space Station life is no escape from terrestrial turmoil between his mom and his new wife Bernadette. Raj meets someone special who may be a good match, if he can keep her from fleeing mid-date. And then there's Sheldon. He learns what not to say after facing harassment charges or competing for tenure at work and how Dungeons & Dragons can be the icebreaker his relationship with Amy needs.

Episodes

NoFirst Air DateNameOverview
6x1The Date Night VariableWith his friends on dates, Raj must face his loneliness. Also, Wolowitz is caught in an argument between Bernadette and his mom, even while he’s in space.
6x2The Decoupling FluctuationWhen Sheldon learns that Penny is thinking about breaking up with Leonard, he tries to intervene. Meanwhile, in space, the other astronauts pick on Howard.
6x3The Higgs Boson ObservationAmy feels threatened when Sheldon hires a young female assistant, and the pressure of being in space takes its toll on Wolowitz.
6x4The Re-Entry MinimizationWhen Wolowitz returns from space, he doesn’t get the hero’s welcome he expected. Meanwhile, Game Night turns into a battle of the sexes.
6x5The Holographic ExcitationThe gang celebrates Halloween at Stuart’s comic book store. Meanwhile, Leonard seduces Penny with science.
6x6The Extract ObliterationSheldon’s relationship with Stephen Hawking is threatened over a game of “Words with Friends,” and Penny secretly enrolls in a class at the local college.
6x7The Habitation ConfigurationWolowitz struggles with moving out of his mother’s house. Meanwhile, Sheldon is caught in the middle of an argument between Amy and Wil Wheaton.
6x8The 43 PeculiarityRaj and Howard try to to figure out why Sheldon disappears at 2:45 every afternoon; jealousy arises in Penny and Leonard's relationship.
6x9The Parking Spot EscalationWhen the University reassigns Sheldon’s parking spot to Wolowitz, their fight affects the whole gang.
6x10The Fish Guts DisplacementWhen Amy gets sick, Sheldon tries to nurse her back to health; Wolowitz and his father-in-law plan a fishing trip.
6x11The Santa SimulationDuring a Dungeons and Dragons game, Sheldon revisits Christmas memories; Amy, Penny and Bernadette look for a date for Raj.
6x12The Egg Salad EquivalencyWhen Sheldon is accused of sexual harassment, he ends up getting Raj, Leonard and Howard in trouble.
6x13The Bakersfield ExpeditionAs 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.
6x14The Cooper/Kripke InversionSheldon 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.
6x15The Spoiler Alert SegmentationA fight between Sheldon and Leonard impacts Amy and Penny's living arrangements; while Howard is away, Raj helps Mrs. Wolowitz out.
6x16The Tangible Affection ProofThe 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.
6x17The Monster IsolationAfter a bad date, Koothrappali decides to never leave his apartment; Penny's acting skills impress Sheldon.
6x18The Contractual Obligation ImplementationLeonard, Sheldon and Howard give lectures on science to junior high students. The girls ditch work to go to Disneyland. Raj devises a date for Lucy that fixes their social anxiety problems.
6x19The Closet ReconfigurationHoward considers whether or not he should open a letter from his father; Penny and Leonard host a "grown-up" cocktail party.
6x20The Tenure TurbulenceThe girls get involved when Leonard, Sheldon and Raj compete for tenure at the University.
6x21The Closure AlternativeAmy 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.
6x22The Proton ResurgenceLeonard 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.
6x23The Love Spell PotentialA date between Raj and Lucy takes both of them out of their comfort zones. After a trip to Las Vegas goes awry, the girls join in on a Dungeons and Dragons game, which causes Amy and Sheldon to re-evaluate their relationship.
6x24The Bon Voyage ReactionWhen Leonard receives an exciting opportunity to work overseas, Penny and Sheldon are thrown for a loop. Raj and Lucy's relationship comes to a crossroad.

Cast

CharacterPerson
Leonard HofstadterJohnny Galecki
Sheldon CooperJim Parsons
PennyKaley Cuoco
Howard WolowitzSimon Helberg
Rajesh KoothrappaliKunal Nayyar
Bernadette RostenkowskiMelissa Rauch
Amy Farrah FowlerMayim Bialik

Crew

DepartmentJobPerson
ArtArt DirectionFrancoise Cherry-Cohen
Production DesignJohn Shaffner
Set DecorationAnn Shea
CameraDirector of PhotographySteven V. Silver
Costume & Make-UpCostume DesignMary T. Quigley
HairstylistFaye Woods
Sylvia Surdu
Makeup ArtistPeggy Nichols
Vikki McCarter
CrewProperty MasterScott L. London
Scientific ConsultantDavid Saltzberg
DirectingFirst Assistant DirectorAnthony Joseph Rich
Second Assistant DirectorChris Klausen
EditingEditorPeter Chakos
LightingGafferJohn Greene
ProductionAssociate ProducerRobinson Green
Ryan Berdan
CastingKen Miller
Nikki Valko
Casting AssociateTara Treacy
Co-Executive ProducerDavid Goetsch
Eddie Gorodetsky
Eric Kaplan
Faye Oshima Belyeu
Jim Reynolds
Steve Holland
Co-ProducerKelly-Anne Lee
Kristy Cecil
Mary T. Quigley
Coordinating ProducerSuzanne McCormack
Executive ConsultantDon Foster
Executive ProducerBill Prady
Chuck Lorre
Steven Molaro
Supervising ProducerMaria Ferrari
Peter Chakos
Unit Production ManagerKelly-Anne Lee
SoundProduction Sound MixerBruce Peters
Sound Re-Recording MixerBob La Masney
Charlie McDaniel
Sound mixerBruce Peters
Theme Song PerformanceBarenaked Ladies