All Available Season All Season Specials Jun, 1972 18 episodes 0.0 Season 1 Feb, 1973 53 episodes 9.5 Season 2 Jan, 1974 42 episodes 7.5 Season 3 Jan, 1975 40 episodes 0.0 Season 4 Jan, 1976 47 episodes 0.0 Season 5 Feb, 1977 47 episodes 0.0 Season 6 Mar, 1978 41 episodes 0.0 Season 7 Jan, 1979 50 episodes 10.0
