| The Big Bang Theory | |
|---|---|
| Season 3 | |
 DVD cover art | |
| Starring | |
| No. of episodes | 23 |
| Release | |
| Original network | CBS |
| Original release | September 21, 2009 – May 24, 2010 |
| Season chronology | |
The third season of the American television sitcom The Big Bang Theory aired on CBS from September 21, 2009 to May 24, 2010. It received higher ratings than the previous two seasons with over 15 million viewers.[1] The third season saw the first appearances of future main cast members Melissa Rauch and Mayim Bialik as Bernadette Rostenkowski and Dr. Amy Farrah Fowler respectively.
Christine Baranski was nominated for the Primetime Emmy Award for Outstanding Guest Actress in a Comedy Series at the 62nd Primetime Emmy Awards for the episode, "The Maternal Congruence". Jim Parsons won the Primetime Emmy Award for Outstanding Lead Actor in a Comedy Series for the episode "The Pants Alternative".