All Available Episode All Season 4 Episode 1. Series 4, Episode 1 Feb, 1992 30 minutes 0.0 2. Series 4, Episode 2 Feb, 1992 30 minutes 0.0 3. Series 4, Episode 3 Feb, 1992 30 minutes 0.0 4. Series 4, Episode 4 Mar, 1992 30 minutes 0.0 5. Series 4, Episode 5 Mar, 1992 30 minutes 0.0 6. Series 4, Episode 6 Mar, 1992 30 minutes 0.0 7. Series 4, Episode 7 Mar, 1992 30 minutes 0.0