Season 3

Season 3: 2009-2010
This list of episodes is for the third season of the American sitcom The Big Bang Theory, that was originally aired on CBS from September 21, 2009 to May 24, 2010 over 23 episodes. It has received higher ratings than the previous two seasons with over 15 million viewers.

Season 3 of The Big Bang Theory returned to television in September 21, 2009 and contained 23 episodes.

Cast

 * Johnny Galecki as Leonard Hofstadter
 * Jim Parsons as Sheldon Cooper
 * Kaley Cuoco as Penny
 * Simon Helberg as Howard Wolowitz
 * Kunal Nayyar as Rajesh Koothrappali