Episode Titles: Topology
You are viewing a list of 1 The Big Bang Theory episode featuring "Topology" in their title.
Season 2, Episode 2 - The Codpiece Topology
Aired September 29, 2008
After Leonard sees Penny with a handsome new mate, he starts up a relationship with Leslie Winkle. Meanwhile, Sheldon is unhappy with the presence of his mortal enemy in his apartment and plots to break her and Leonard up.