All Available Season All Season Season 1 Sep, 1977 25 episodes 4.5 Season 2 Sep, 1978 27 episodes 6.7 Season 3 Sep, 1979 28 episodes 0.0 Season 4 Oct, 1980 28 episodes 5.7 Season 5 Oct, 1981 31 episodes 0.0 Season 6 Oct, 1982 29 episodes 7.0 Season 7 Oct, 1983 27 episodes 0.0 Season 8 Sep, 1984 27 episodes 0.0 Season 9 Sep, 1985 25 episodes 0.0 Season 10 Nov, 1986 4 episodes 2.0
