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7/7 Secretly writing for Doctor Who and tinkering with the famous theme tune.
6/7 The producer recalls the threat to his autonomy via increasing attention from above.
5/7 The birth of the Time Lord's nemesis and the attributes of his female companions.
4/7 The Doctor Who producer reflects on major changes in the TV filming process.
3/7 Doctor Who producer recalls the show's regeneration from Patrick Troughton to Jon Pertwee.
2/7 The producer graduates from actor to TV director, and finds a new path to enlightenment.
1/7 Barry Letts recounts his early career through to his working life with Jon Pertwee.