All Available Season All Season Season 1 Dec, 2005 8 episodes 8.9 Season 2 May, 2008 8 episodes 9.0 Season 3 May, 2010 12 episodes 9.0 Season 4 Sep, 2012 12 episodes 9.0 Season 5 Nov, 2014 12 episodes 9.0 Season 6 Sep, 2017 12 episodes 9.0 Season 7 Feb, 2019 12 episodes 10.0 Season 8 Sep, 2020 10 episodes 0.0
