110: Catch 22

Season 22 is out on bluray next week, and to mark the occasion - one day after Kenny's birthday on 19 June - we meet some of the people involve in its creation. We start with a chat with guest star Martin Jarvis, about memories of Vengeance on Varos, then meet Peter Crocker, who has restored the video, while Richard Bignell takes us through his work on creating the PDF archive for this story. Our final interviewee is Chris Chapman, who tells us about documentary making - and animating missing episodes - for the official BBC releases.