Episode Guide
Season 6
Episode Guide
The Date Night Variable
S6
E1
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.
The Decoupling Fluctuation
S6
E2
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.
The Higgs Boson Observation
S6
E3
Amy feels threatened when Sheldon hires a young female assistant, and the pressure of being in space takes its toll on Wolowitz.
The Re-Entry Minimization
S6
E4
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. Howie Mandel guest stars.
The Holographic Excitation
S6
E5
The gang celebrates Halloween at Stuart's comic book store. Meanwhile, Leonard seduces Penny with science. Astronaut Buzz Aldrin Makes a Cameo Appearance as Himself.
The Extract Obliteration
S6
E6
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. Renowned Scientist Stephen Hawking lends his Voice.
The 43 Peculiarity
S6
E8
Howard and Raj try to get to the bottom of why Sheldon disappears every afternoon at 2:45. Meanwhile, Leonard and Penny deal with jealousy in their relationship.
The Parking Spot Escalation
S6
E9
When the University reassigns Sheldon's parking spot to Wolowitz, their fight affects the whole gang.
The Fish Guts Displacement
S6
E10
Sheldon tries to nurse a sick Amy back to health, while Wolowitz prepares for an upcoming fishing trip with his father-in-law.
The Santa Simulation
S6
E11
Sheldon revisits some Christmas memories during a game of Dungeons and Dragons, while Penny, Bernadette and Amy try to find a girl for Koothrappali when he joins the girls for ladies' night.