Leonard asks Alicia (Valerie Azlynn) the all important question when installing her DVD player... would you like it to default to Dolby Digital or DTS?
Leonard plays laser obstacle chess with the guys. What is laser obstacle chess? Glad you asked. You must avoid the lasers in order to make your next move.
Penny and Leonard discover paint in Sheldon's spot on the couch after the gang plays paintball in next week's episode of The Big Bang Theory, "The Cushion Saturation."
Howard Wolowitz and Leslie Winkle do the nasty on next week's episode of The Big Bang Theory, "The Cushion Saturation." Really Wolowitz, Leonard's ex? That's not cool, even for you.
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?