All Available Season All Season Specials Apr, 1971 3 episodes 0.0 Season 1 Feb, 1969 7 episodes 6.8 Season 2 May, 1969 6 episodes 7.7 Season 3 Jan, 1970 13 episodes 0.0 Season 4 Nov, 1970 13 episodes 0.0 Season 5 Sep, 1971 15 episodes 0.0 Season 6 Feb, 1972 7 episodes 0.0 Season 7 Feb, 1973 13 episodes 7.0
