All Available Season All Season Specials Apr, 2010 9 episodes 0.0 Season 1 Sep, 2007 25 episodes 6.6 Season 2 Sep, 2008 25 episodes 6.5 Season 3 Sep, 2009 20 episodes 6.0 Season 4 Jul, 2010 13 episodes 6.9 Season 5 Aug, 2011 11 episodes 5.6 Season 6 Mar, 2012 13 episodes 6.4
