Season 1 ITV1 , 1975 Season 2 ITV1 , 1976 Season 3 ITV1 , 1977 Season 4 ITV1 , 1978 Season 5 ITV1 , 1979 Season 6 ITV1 , 1980 Season 7 ITV1 , 1981 Season 8 ITV1 , 1982 Season 9 ITV1 , 1983 Season 10 ITV1 , 1984 Season 11 ITV1 , 1985 Season 12 ITV1 , 1986 Season 13 ITV1 , 1987
, 1975