2/4. From Not Only but Also through to Behind the Fridge, Michael Palin trawls Peter Cook 's prolific back catalogue, which this week includes material from the period Cook later referred to as the happiest time in his career. Featuring interviews from the 1970s with Michael Parkinson and David Dimbleby , an account of Peter's short-lived career as a chat-show host, spoof arts-documentary footage and rare sketches from Not Only but Also and Goodbye Again. Producer Lucy Armitage