All Available Season All Season Season 1 Jun, 2007 12 episodes 7.5 Season 2 Jul, 2008 16 episodes 7.9 Season 3 Jun, 2009 16 episodes 7.1 Season 4 Jun, 2010 18 episodes 7.8 Season 5 Jun, 2011 18 episodes 7.8 Season 6 Jun, 2012 18 episodes 8.0 Season 7 Jun, 2013 13 episodes 6.8
