Episode Titles: Variable
You are viewing a list of 1 The Big Bang Theory episode featuring "Variable" in their title.
Season 6, Episode 1 - The Date Night Variable
Aired September 27, 2012
Amy is not impressed when Sheldon invites a lonely Raj along on their date night. Penny and Leonard's romantic evening together also gets interrupted after Amy sends Raj away. Meanwhile, Howard and his mother are caught in an argument, even as he's 220 miles above earth in the International Space Station.