The Big Bang Theory Season 4

The fourth season of the American sitcom [[The Big Bang Theory]], began airing on [[CBS]] on September 23, 2010. During the season, actress [[Kaley Cuoco]] was absent from two episodes after she fell off a horse and the horse accidentally crushed her leg. When she returned to the series, she was shown working as a [[bartender]] instead of [[waitressing]] at her usual workplace, [[The Cheesecake Factory]], to hide her injury. In January 2011, The Big Bang Theory was renewed for an additional three years; extending it through the 2013/14 season, for a fifth, sixth, and seventh season. Season four starts four months after the end of season three and [[Sheldon Cooper]]'s first date with [[Amy Farrah Fowler]].