season  episodes       time slot (est)      season premiere  season finale    tv season  rank  viewers (in millions)
0       1        23  wednesday 10 pm / 9c  september 22 , 2004  may 18 , 2005  2004 - 2005    21                  13.59
1       2        24  wednesday 10 pm / 9c  september 28 , 2005  may 17 , 2006  2005 - 2006    22                  14.04
2       3        24  wednesday 10 pm / 9c  september 20 , 2006  may 16 , 2007  2006 - 2007    25                  13.92
3       4        21  wednesday 10 pm / 9c  september 26 , 2007  may 21 , 2008  2007 - 2008    28                  11.71
4       5        25  wednesday 10 pm / 9c  september 24 , 2008  may 14 , 2009  2008 - 2009    17                  13.50
5       6        23  wednesday 10 pm / 9c  september 23 , 2009  may 26 , 2010  2009 - 2010    23                  12.66
6       7        22      friday 9 pm / 8c  september 24 , 2010  may 13 , 2011  2010 - 2011    37                  10.73
7       8        18      friday 9 pm / 8c  september 23 , 2011  may 11 , 2012  2011 - 2012    38                  10.34

Table as JSON:
{"season":{"0":1,"1":2,"2":3,"3":4,"4":5,"5":6,"6":7,"7":8},"episodes":{"0":23,"1":24,"2":24,"3":21,"4":25,"5":23,"6":22,"7":18},"time slot (est)":{"0":"wednesday 10 pm \/ 9c","1":"wednesday 10 pm \/ 9c","2":"wednesday 10 pm \/ 9c","3":"wednesday 10 pm \/ 9c","4":"wednesday 10 pm \/ 9c","5":"wednesday 10 pm \/ 9c","6":"friday 9 pm \/ 8c","7":"friday 9 pm \/ 8c"},"season premiere":{"0":"september 22 , 2004","1":"september 28 , 2005","2":"september 20 , 2006","3":"september 26 , 2007","4":"september 24 , 2008","5":"september 23 , 2009","6":"september 24 , 2010","7":"september 23 , 2011"},"season finale":{"0":"may 18 , 2005","1":"may 17 , 2006","2":"may 16 , 2007","3":"may 21 , 2008","4":"may 14 , 2009","5":"may 26 , 2010","6":"may 13 , 2011","7":"may 11 , 2012"},"tv season":{"0":"2004 - 2005","1":"2005 - 2006","2":"2006 - 2007","3":"2007 - 2008","4":"2008 - 2009","5":"2009 - 2010","6":"2010 - 2011","7":"2011 - 2012"},"rank":{"0":21,"1":22,"2":25,"3":28,"4":17,"5":23,"6":37,"7":38},"viewers (in millions)":{"0":13.59,"1":14.04,"2":13.92,"3":11.71,"4":13.5,"5":12.66,"6":10.73,"7":10.34}}