All Available Season All Season Specials Jan, 0001 1 episodes 0.0 Season 1 Jan, 1972 74 episodes 0.0 Season 2 Jan, 1976 29 episodes 0.0 Season 3 Sep, 1976 45 episodes 0.0 Season 4 Sep, 1977 25 episodes 0.0 Season 5 Oct, 1978 37 episodes 0.0 Season 6 Oct, 1979 35 episodes 0.0 Season 7 Sep, 1980 34 episodes 0.0 Season 8 Sep, 1981 23 episodes 0.0 Season 9 Sep, 1982 34 episodes 0.0 Season 10 Sep, 1983 19 episodes 0.0 Season 11 Oct, 1984 14 episodes 0.0 Season 12 Oct, 1985 15 episodes 0.0 Season 13 Sep, 1986 14 episodes 0.0 Season 14 Oct, 1987 9 episodes 0.0 Season 15 Oct, 1988 21 episodes 0.0 Season 16 Oct, 1989 17 episodes 0.0 Season 17 Oct, 1990 16 episodes 0.0 Season 18 Oct, 1992 15 episodes 0.0 Season 19 Aug, 1996 5 episodes 0.0