Season |
Episodes |
Time slot (EST) |
Original airing |
Rank |
Viewers
(in millions) |
Season premiere |
Season finale |
TV season |
1 |
23 |
Friday 9pm/8c (October 6, 2000 – January 12, 2001)
Thursday 9pm/8c (February 1, 2001 – May 17, 2001) |
October 6, 2000 (2000-10-06) |
May 17, 2001 (2001-05-17) |
2000–2001 |
#10 |
17.80[11] |
2 |
23 |
Thursday 9pm/8c |
September 27, 2001 (2001-09-27) |
May 16, 2002 (2002-05-16) |
2001–2002 |
#2 |
23.69[12] |
3 |
23 |
September 26, 2002 (2002-09-26) |
May 15, 2003 |
2002–2003 |
#1 |
26.20[13] |
4 |
23 |
September 25, 2003 (2003-09-25) |
May 20, 2004 |
2003–2004 |
#2 |
25.27[14] |
5 |
25 |
September 23, 2004 (2004-09-23) |
May 19, 2005 |
2004–2005 |
#2 |
26.26[15] |
6 |
24 |
September 22, 2005 (2005-09-22) |
May 18, 2006 |
2005–2006 |
#3 |
24.86[16] |
7 |
24 |
September 21, 2006 (2006-09-21) |
May 17, 2007 |
2006–2007 |
#4 |
20.34[17] |
8 |
17 |
September 27, 2007 (2007-09-27) |
May 15, 2008 |
2007–2008 |
#9 |
16.62[18] |
9 |
24 |
October 9, 2008 (2008-10-09) |
May 14, 2009 |
2008–2009 |
#4 |
18.52[19] |
10 |
23 |
September 24, 2009 (2009-09-24) |
May 20, 2010 |
2009–2010 |
#12 |
14.92[20] |
11 |
22 |
September 23, 2010 (2010-09-23) |
May 12, 2011 |
2010–2011 |
#12 |
13.52[21] |
12 |
22 |
Wednesday 10pm/9c |
September 21, 2011 |
May 9, 2012 |
2011–2012 |
#21 |
12.49[22] |
13 |
22 |
September 26, 2012 |
May 15, 2013 |
2012–2013 |
#25 |
11.63[23] |