What season finale season 4?
Season Episodes Time slot (EST) Season premiere Season finale TV season Rank Viewers (in millions)
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1 23 Wednesday 10pm/9c September 22, 2004 May 18, 2005 2004–2005 #21 13.59
2 24 Wednesday 10pm/9c September 28, 2005 May 17, 2006 2005–2006 #22 14.04
3 24 Wednesday 10pm/9c September 20, 2006 May 16, 2007 2006–2007 #25 13.92
4 21 Wednesday 10pm/9c September 26, 2007 May 21, 2008 2007–2008 #28 11.71
5 25 Wednesday 10pm/9c September 24, 2008 May 14, 2009 2008–2009 #17 13.50
6 23 Wednesday 10pm/9c September 23, 2009 May 26, 2010 2009–2010 #23 12.66
7 22 Friday 9pm/8c September 24, 2010 May 13, 2011 2010–2011 #37 10.73
8 18 Friday 9pm/8c September 23, 2011 May 11, 2012 2011–2012 #38 10.34
table_10819266_8
SELECT Season finale FROM table WHERE Season = 4
4