Plot: Series charting the history of some of the best British comedy shows looks at the inside story of intergalactic sitcom Red Dwarf, written by Rob Grant and Doug Naylor. Interviewees include the two writers, stars Craig Charles, Chris Barrie, Robert Llewellyn, Norman Lovett and Chloe Annett, and there's a look at how their careers have involved programmes such as Spitting Image, Saturday Live, Carrott's Lib, Happy Families and Robot Wars