All Available Season All Season Specials Jan, 1977 4 episodes 0.0 Season 1 Jan, 1978 14 episodes 6.1 Season 2 Sep, 1978 25 episodes 0.0 Season 3 Sep, 1979 23 episodes 6.0 Season 4 Oct, 1980 24 episodes 5.4 Season 5 Oct, 1981 22 episodes 6.0 Season 6 Oct, 1982 22 episodes 0.0 Season 7 Oct, 1983 22 episodes 6.0
