All Available Season All Season Season 1 Oct, 1972 30 episodes 0.0 Season 2 Jan, 0001 29 episodes 0.0 Season 3 Sep, 1974 22 episodes 0.0 Season 4 Sep, 1975 22 episodes 0.0 Season 5 Sep, 1976 15 episodes 0.0 Season 6 Sep, 1977 28 episodes 0.0
