All Available Season All Season Specials Dec, 2005 20 episodes 0.0 Season 1 Nov, 1970 7 episodes 0.0 Season 2 Oct, 1971 20 episodes 2.5 Season 3 Feb, 1973 14 episodes 0.0 Season 4 Dec, 1973 14 episodes 0.0 Season 5 Feb, 1975 27 episodes 0.0 Season 6 Sep, 1976 14 episodes 2.0 Season 7 Nov, 1977 11 episodes 0.0 Season 8 Jan, 1980 12 episodes 0.0 Season 9 Dec, 1981 14 episodes 0.0
