Season 6 (2012)
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.
Ep.1 The Date Night Variable
Air Date: 2012-09-27
With 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
Ep.2 The Decoupling Fluctuation
Air Date: 2012-10-04
When Sheldon learns that Penny is thinking about breaking up with Leonard, he tries to intervene. Meanwhile, in space, the other astronauts pick on Howard.
Ep.3 The Higgs Boson Observation
Air Date: 2012-10-11
Amy feels threatened when Sheldon hires a young female assistant, and the pressure of being in space takes its toll on Wolowitz.
Ep.4 The Re-Entry Minimization
Air Date: 2012-10-18
When Wolowitz returns from space, he doesn’t get the hero’s welcome he expected. Meanwhile, Game Night turns into a battle of the sexes.
Ep.5 The Holographic Excitation
Air Date: 2012-10-25
The gang celebrates Halloween at Stuart’s comic book store. Meanwhile, Leonard seduces Penny with science.
Ep.6 The Extract Obliteration
Air Date: 2012-11-01
Sheldon’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.
Ep.7 The Habitation Configuration
Air Date: 2012-11-08
Wolowitz struggles with moving out of his mother’s house. Meanwhile, Sheldon is caught in the middle of an argument between Amy and Wil Wheaton.
Ep.8 The 43 Peculiarity
Air Date: 2012-11-15
Raj and Howard try to to figure out why Sheldon disappears at 2:45 every afternoon; jealousy arises in Penny and Leonard's relationship.
Ep.9 The Parking Spot Escalation
Air Date: 2012-11-29
When the University reassigns Sheldon’s parking spot to Wolowitz, their fight affects the whole gang.
Ep.10 The Fish Guts Displacement
Air Date: 2012-12-06
When Amy gets sick, Sheldon tries to nurse her back to health; Wolowitz and his father-in-law plan a fishing trip.
Ep.11 The Santa Simulation
Air Date: 2012-12-13
During a game, Sheldon revisits Christmas memories; Amy, Penny and Bernadette look for a date for Koothrappali.
Ep.12 The Egg Salad Equivalency
Air Date: 2013-01-03
When Sheldon is accused of sexual harassment, he ends up getting Raj, Leonard and Wolowitz in trouble.
Ep.13 The Bakersfield Expedition
Air Date: 2013-01-10
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.
Ep.14 The Cooper/Kripke Inversion
Air Date: 2013-01-31
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.
Ep.15 The Spoiler Alert Segmentation
Air Date: 2013-02-07
A fight between Sheldon and Leonard impacts Amy and Penny's living arrangements; while Howard is away, Raj helps Mrs. Wolowitz out.
Ep.16 The Tangible Affection Proof
Air Date: 2013-02-14
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.
Ep.17 The Monster Isolation
Air Date: 2013-02-21
After a bad date, Koothrappali decides to never leave his apartment; Penny's acting skills impress Sheldon.
Ep.18 The Contractual Obligation Implementation
Air Date: 2013-03-07
Leonard, Sheldon and Wolowitz talk to junior high girls about science-related careers; Raj plans a date with Lucy.
Ep.19 The Closet Reconfiguration
Air Date: 2013-03-14
Howard considers whether or not he should open a letter from his father; Penny and Leonard host a "grown-up" cocktail party.
Ep.20 The Tenure Turbulence
Air Date: 2013-04-04
The girls get involved when Leonard, Sheldon and Raj compete for tenure at the University.
Ep.21 The Closure Alternative
Air Date: 2013-04-25
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.
Ep.22 The Proton Resurgence
Air Date: 2013-05-02
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.
Ep.23 The Love Spell Potential
Air Date: 2013-05-09
Amy and Sheldon's relationship takes a surprising turn during a game of "Dungeons & Dragons"; Lucy and Koothrappali have an awkward date.
Ep.24 The Bon Voyage Reaction
Air Date: 2013-05-16
When Leonard receives an exciting opportunity to work overseas, Penny and Sheldon are thrown for a loop.