After the Moonbase commander sets the Something Who team the challenge of recording an episode in an hour and a half to solve a strange illness that's affecting the UK, Richard Giles and Simon discuss the Season 4 Patrick Troughton story The Moonbase and Series 3's David Tennant story Smith and Jones. What could the linking theme be?

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The opening music is from Tipitina by Dr John and the uncredited snatch of music at the end is from Cup of Tea by Kacey Musgraves.