Season 1 Channel 4 , 2009 Season 2 Channel 4 , 2009 Season 3 Channel 4 , 2010 Season 4 Channel 4 , 2010 Season 5 Channel 4 , 2010 - 2011 Season 6 Channel 4 , 2011 Season 7 Channel 4 , 2011 Season 8 Channel 4 , 2012 Season 9 Channel 4 , 2012 Season 10 Channel 4 , 2013 Season 11 Channel 4 , 2013 Season 12 Channel 4 , 2014 Season 13 Channel 4 , 2014 Season 14 Channel 4 , 2015 Season 15 Channel 4 , 2015 Watch now Season 16 Channel 4 , 2016 - 2018 Watch now