Howard finds out he must reschedule his wedding on this episode of The Big Band Theory. "The Launch Acceleration" is the 23rd installment of the show's 5th season.
Sheldon gets into an argument with Stephen Hawking over a game of Words With Friends on The Big Bang Theory. "The Extract Obliteration" is the sixth episode of the show's sixth season.
Sheldon gets caught in the middle between Amy and Will Wheaton on The Big Bang Theory. "The Habitation Configuration" is the seventh 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?