All Available Season All Season Specials Dec, 1981 40 episodes 0.0 Series 1 Sep, 1981 6 episodes 7.7 Series 2 Oct, 1982 7 episodes 8.6 Series 3 Nov, 1983 7 episodes 8.6 Series 4 Feb, 1985 7 episodes 8.9 Series 5 Aug, 1986 6 episodes 8.8 Series 6 Jan, 1989 6 episodes 9.0 Series 7 Dec, 1990 6 episodes 9.1
