Series 6 poster

Series 6

6 episodes September 19, 1971

First series to be aired on BBC1

Episodes

1 Episode 1 Sep 19, 1971 No ratings 2 Episode 2 Sep 26, 1971 No ratings 3 Episode 3 Oct 3, 1971 No ratings 4 Episode 4 Oct 10, 1971 No ratings 5 Episode 5 Oct 17, 1971 No ratings 6 Episode 6 Oct 31, 1971 No ratings