Episode Guide
| Seasons | ||
| Season | Original Run | Episodes |
| Season 1 | September 21, 2003 to May 23, 2004 | 24 |
| Season 2 | September 19, 2004 to May 22, 2005 | 24 |
| Season 3 | September 18, 2005 to May 21, 2006 | 24 |
| Season 4 | September 17, 2006 to May 13, 2007 | 24 |
| Season 5 | September 23, 2007 to May 18, 2008 | 19 |
| Season 6 | September 22, 2008 to May 18, 2009 | 24 |
| Season 7 | September 21, 2009 to March 22, 2010 | 18 |
| Search Episodes | ||
