Rob Brydon hosts an episode of unseen material from the panel show.
With guests Rebecca Front, Jack Whitehall, Nick Hewer and Miranda Hart.
The UCOS team reinvestigate the disappearance of a prominent physics professor.
The Botts move into Croombe Hall, with a few surprises for William and his friends.
Exotic Uncle Neville visits, and William decides to give a lecture on 'intrestin' animals.
William tries to impress tomboy Dorinda in a Shakespeare competition.