As part of its 50th birthday celebrations, BBC Two is allowing all-areas access to their precious comedy vaults. This programme pulls from the shelf some rare and unseen comedy moments from some of the greatest names in comedy.

There are pilots which have never been broadcast before, including Miranda Hart's Joke Shop, Stephen Fry's first appearance as the quizmaster in QI and a sitcom from the band Madness.

There is also rare comedy treats from Spike Milligan, Pete & Dud, Rik Mayall and Billy Connolly, and Sacha Baron Cohen's first incarnation of Borat, an Albanian called Christo.

Packed with archive treasure illustrating how groundbreaking and innovative BBC Two has been for British comedy, insightful analysis is provided by the guest interviews which boast some of the biggest names in television.

Tamsin Greig is the narrator.