All Available Season All Season Specials Jan, 0001 14 episodes 0.0 Season 1 Oct, 1971 13 episodes 0.0 Season 2 Oct, 1972 13 episodes 9.5 Season 3 Oct, 1973 13 episodes 1.0 Season 4 Sep, 1974 13 episodes 0.0 Season 5 Sep, 1975 16 episodes 1.0
