All Available Season All Season Specials Mar, 1973 9 episodes 0.0 Season 1 Oct, 1973 22 episodes 6.0 Season 2 Sep, 1974 25 episodes 0.0 Season 3 Sep, 1975 24 episodes 10.0 Season 4 Sep, 1976 25 episodes 0.0 Season 5 Oct, 1977 22 episodes 0.0
