Season 1 ITV1 , 1966 - 1967 Season 2 ITV1 , 1967 - 1968 Season 3 ITV1 , 1968 - 1969 Season 4 ITV1 , 1970 Season 5 ITV1 , 1970 Season 6 ITV1 , 1971 Season 7 ITV1 , 1972 Season 8 ITV1 , 1973 Season 9 ITV1 , 1974 Season 10 ITV1 , 1975 Season 11 ITV1 , 1975 - 1976 Season 12 ITV1 , 1977 Season 13 ITV1 , 1978 Season 14 ITV1 , 1978 - 1979 Season 15 ITV1 , 1980 Season 16 ITV1 , 1981
, 1966 - 1967