All Available Episode All Season 4 Episode 1. Series 4, Episode 1 (Models 88) Sep, 1988 30 minutes 0.0 2. Series 4, Episode 2 Sep, 1988 30 minutes 0.0 3. Series 4, Episode 3 Oct, 1988 30 minutes 0.0 4. Series 4, Episode 4 Oct, 1988 30 minutes 0.0 5. Series 4, Episode 5 Oct, 1988 30 minutes 0.0 6. Series 4, Episode 6 Oct, 1988 30 minutes 0.0 7. Series 4, Episode 7 Oct, 1988 30 minutes 0.0 8. Series 4, Episode 8 Nov, 1988 30 minutes 0.0 9. Series 4, Episode 9 Nov, 1988 30 minutes 0.0 10. Series 4, Episode 10 Nov, 1988 30 minutes 0.0 11. Series 4, Episode 11 Nov, 1988 30 minutes 0.0 12. Series 4, Episode 12 Dec, 1988 30 minutes 0.0 13. Series 4, Episode 13 Dec, 1988 30 minutes 0.0 14. Series 4, Episode 14 Dec, 1988 30 minutes 0.0 15. Series 4, Episode 15 (India Special) Jan, 1989 30 minutes 0.0 16. Series 4, Episode 16 Jan, 1989 30 minutes 0.0 17. Series 4, Episode 17 Jan, 1989 30 minutes 0.0 18. Series 4, Episode 18 Jan, 1989 30 minutes 0.0 19. Series 4, Episode 19 Jan, 1989 30 minutes 0.0 20. Series 4, Episode 20 Feb, 1989 30 minutes 0.0 21. Series 4, Episode 21 Feb, 1989 30 minutes 0.0 22. Series 4, Episode 22 Feb, 1989 30 minutes 0.0 23. Series 4, Episode 23 Feb, 1989 30 minutes 0.0 24. Series 4, Episode 24 Mar, 1989 30 minutes 0.0 25. Series 4, Episode 25 Mar, 1989 30 minutes 0.0 26. Series 4, Episode 26 Mar, 1989 30 minutes 0.0 27. Series 4, Episode 27 Mar, 1989 30 minutes 0.0 28. Series 4, Episode 28 Apr, 1989 30 minutes 0.0 29. Series 4, Episode 29 Apr, 1989 30 minutes 0.0 30. Series 4, Episode 30 Apr, 1989 30 minutes 0.0 31. Series 4, Episode 31 Apr, 1989 30 minutes 0.0 32. Series 4, Episode 32 Apr, 1989 30 minutes 0.0 33. Series 4, Episode 33 May, 1989 30 minutes 0.0