Season 1 Cartoon Network , 1984 - 1985 Watch now Season 2 Cartoon Network , 1986 Watch now Season 3 Cartoon Network , 1992 Watch now Season 4 Cartoon Network , 1995 Watch now Season 5 Cartoon Network , 1998 Watch now Season 6 Cartoon Network , 2002 Watch now Season 7 Cartoon Network , 2003 Watch now Season 8 Cartoon Network , 2004 Watch now Season 9 Cartoon Network , 2005 Watch now Season 10 Cartoon Network , 2006 Watch now Season 11 ITV1 , 2007 - 2008 Watch now Season 12 ITV1 , 2008 Watch now Season 13 ITV1 , 2010 Watch now Season 14 ITV1 , 2010 Watch now Season 15 ITV1 , 2011 Watch now Season 16 ITV1 , 2012 Watch now Season 17 ITV1 , 2013 - 2014 Watch now Season 18 ITV1 , 2014 - 2015 Watch now Season 19 Channel 5 , 2015 - 2017 Watch now Season 20 Channel 5 , 2016 - 2017 Watch now Season 21 Channel 5 , 2017 Watch now