Season 1 ITV1 , 1968 Season 2 ITV1 , 1968 - 1969 Season 3 ITV1 , 1969 Season 4 ITV1 , 1970 Season 5 ITV1 , 1971 Season 6 ITV1 , 1971 Season 7 ITV1 , 1972 Season 8 ITV1 , 1973
, 1968