All Available Episode All Season 4 Episode 1. Series 4, Episode 1 Sep, 1978 25 minutes 0.0 2. Series 4, Episode 2 Sep, 1978 25 minutes 0.0 3. Series 4, Episode 3 Sep, 1978 25 minutes 0.0 4. Series 4, Episode 4 Oct, 1978 25 minutes 0.0 5. Series 4, Episode 5 Oct, 1978 25 minutes 0.0 6. Series 4, Episode 6 Oct, 1978 25 minutes 0.0
