All Available Season All Season Specials Jan, 1992 17 episodes 0.0 Series 1 Sep, 1972 6 episodes 0.0 Series 2 Mar, 1974 5 episodes 0.0 Series 3 Feb, 1975 9 episodes 1.0 Series 4 Apr, 1976 7 episodes 1.0 Series 5 Feb, 1977 7 episodes 0.0 Series 6 Nov, 1978 6 episodes 0.0 Series 7 Oct, 1979 8 episodes 0.0 Series 8 Apr, 1981 8 episodes 0.0 Series 9 Apr, 1983 6 episodes 0.0 Series 10 Feb, 1985 7 episodes 0.0
