List of The Big Bang Theory episodes (season 4) - The Big Bang Theory Wiki This is a list of episodes for the fourth season of The Big Bang Theory, which began airing on... ... Episode # Title Air Date Rating Share 18-49 Viewers (millions) 1 The Robotic Manipulation September 23, 2010 8.4 14 4.8/15 13.95 2 The Cruciferous ...
