All Available Season All Season Specials Dec, 1996 4 episodes 0.0 Season 1 Jan, 1972 9 episodes 0.0 Season 2 Sep, 1972 11 episodes 0.0 Season 3 Sep, 1973 12 episodes 0.0 Season 4 Sep, 1974 11 episodes 0.0 Season 5 Sep, 1975 12 episodes 0.0 Season 6 Sep, 1976 9 episodes 0.0 Season 7 Sep, 1977 12 episodes 0.0 Season 8 Sep, 1978 10 episodes 0.0 Season 9 Sep, 1979 12 episodes 0.0 Season 10 Sep, 1980 12 episodes 0.0 Season 11 Sep, 1981 10 episodes 0.0 Season 12 Sep, 1982 12 episodes 0.0 Season 13 Sep, 1983 12 episodes 0.0 Season 14 Sep, 1984 12 episodes 0.0 Season 15 Sep, 1985 14 episodes 0.0 Season 16 Sep, 1986 10 episodes 0.0 Season 17 Sep, 1987 9 episodes 0.0 Season 18 Oct, 1988 8 episodes 0.0 Season 19 Sep, 1989 4 episodes 0.0 Season 20 Dec, 2018 8 episodes 0.0
