Season 1 Discovery , 2005 - 2006 Watch now Season 2 Discovery , 2006 Season 3 Discovery , 2007 Season 4 Discovery , 2007 Season 5 Discovery , 2008 Season 6 Discovery , 2009 Watch now Season 7 Discovery , 2010 Watch now Season 8 Discovery , 2011 Season 9 Discovery , 2012 Season 10 Discovery , 2017 - 2018 Watch now