All Available Episode All Season 4 Episode 1. Series 4, Show 1 Sep, 1989 30 minutes 0.0 2. Series 4, Show 2 Sep, 1991 30 minutes 0.0 3. Series 4, Show 3 Sep, 1989 30 minutes 0.0 4. Series 4, Show 4 Oct, 1989 30 minutes 0.0 5. Series 4, Show 5 Oct, 1989 30 minutes 0.0 6. Series 4, Show 6 Oct, 1989 30 minutes 0.0 7. Series 4, Show 7 Oct, 1989 30 minutes 0.0 8. Series 4, Show 8 Nov, 1989 30 minutes 0.0 9. Series 4, Show 9 Nov, 1989 30 minutes 0.0 10. Series 4, Show 10 Nov, 1989 30 minutes 0.0 11. Series 4, Show 11 Dec, 1989 30 minutes 0.0