The Big Bang Theory Episode Guide
Episode Guide
| Season | Original Run | Episodes |
| Season 1 | September 24, 2007 to May 19, 2008 | 17 |
| Season 2 | September 22, 2008 to May 11, 2009 | 23 |
| Season 3 | September 21, 2009 to May 24, 2010 | 23 |
| Season 4 | September 23, 2010 to September 30, 2010 | 2 |
| Search Episodes | ||
