Episode Titles: Renormalization
You are viewing a list of 1 The Big Bang Theory episode featuring "Renormalization" in their title.
Season 2, Episode 21 - The Vegas Renormalization
Aired April 27, 2009
When Howard is dumped by Leslie Winkle, Leonard and Koothrappali take a heartbroken Wolowitz to Las Vegas to lift his spirits. Back in Pasadena, Sheldon's perfect evening doesn't go to plan when he is locked out of the apartment and forced to spend the night with Penny.