Season 1975 BBC Two , 1975 Season 1976 BBC Two , 1976 Season 1977 BBC Four , 1977 Season 1978 BBC Two , 1978 Season 1979 BBC Four , 1979 Season 1980 BBC Four , 1980 Season 1981 BBC Two , 1981 Season 1982 BBC Four , 1982 Season 1983 BBC Four , 1983 Season 1984 BBC Four , 1984 Season 1985 BBC Four , 1985 Season 1986 BBC Four , 1986 Season 1987 BBC Four , 1987 Season 1988 BBC Four , 1988 Season 1989 BBC Four , 1989 Season 1990 BBC Four , 1990 Season 1991 BBC Four , 1991 Season 1992 BBC Four , 1992 Season 1993 BBC Four , 1993 Season 1994 BBC Four , 1994 Season 1995 BBC Four , 1995 Season 1996 BBC Four , 1996 Season 1997 BBC Four , 1997 Season 1998 BBC Four , 1998 Season 1999 BBC Two , 1999 Season 2000 BBC Four , 2000 Season 2001 BBC Four , 2001 Season 2002 BBC Four , 2002 Season 2003 BBC Four , 2003 Season 2004 BBC Four , 2004 Season 2005 BBC Four , 2005 Season 2006 BBC Four , 2006 Season 2007 BBC Four , 2007 Season 2008 BBC Four , 2008 Season 2009 BBC Four , 2009 Season 2010 BBC Four , 2010 Season 2011 BBC Four , 2011 Season 2012 BBC Four , 2012 Season 2013 BBC Four , 2013 Season 2014 BBC Four , 2014 Season 2015 BBC Four , 2015 Season 2016 BBC Four , 2016 Season 2017 BBC Four , 2017 Season 2018 BBC Four , 2018 Season 2019 BBC Four , 2019 Season 2020 BBC Four , 2020 Season 2021 BBC Four , 2021 Season 2022 BBC Four , 2022 Season 2023 BBC Two , 2023