Season 1 Channel 4 , 2003 Season 2 Channel 4 , 2003 Season 3 Channel 4 , 2003 Season 4 Channel 4 , 2005 Season 5 Channel 4 , 2007 Season 6 Channel 4 , 2009 Season 7 Channel 4 , 2011 Season 8 Channel 4 , 2013 Season 9 Channel 4 , 2016 Season 10 Channel 4 , 2020