Sheldon, Howard, and Leonard give a presentation about careers in science to a group of girls in junior high on The Big Bang Theory. "The Contractual Obligation Implementation" is the 18th episode of the shows sixth season.
Howard and Raj make it their mission to figure out where Sheldon is headed on The Big Bang Theory. "The 43rd Peculiarity" is the eighth episode of the show's sixth season.
Wolowitz and Bernadette celebrate Halloween by dressing up as Smurfs on The Big Bang Theory. "Holographic Excitation" is the fifth episode of the show's sixth season.
Sheldon: I'll have a diet Coke. Penny: Can you please order a cocktail? I need to practice mixing drinks. Sheldon: Fine... I'll have a virgin Cuba Libre. Penny: That's... rum and Coke without the rum. Sheldon: Yes, and would you make it diet?
