All Available Season All Season Specials Nov, 1989 4 episodes 0.0 Season 1 Feb, 1970 7 episodes 7.0 Season 2 Sep, 1971 7 episodes 0.0 Season 3 Oct, 1972 5 episodes 0.0 Season 4 Oct, 1973 5 episodes 0.0 Season 5 Sep, 1974 9 episodes 0.0 Season 6 Sep, 1975 7 episodes 0.0 Season 7 Oct, 1976 6 episodes 0.0
