All Available Season All Season Specials Nov, 2008 7 episodes 0.0 Season 1 Mar, 2007 40 episodes 7.9 Season 2 Oct, 2009 40 episodes 7.4 Season 3 Nov, 2012 20 episodes 8.0 Season 4 Feb, 2014 30 episodes 7.8 Season 5 Sep, 2016 20 episodes 7.5
