Plot: What is a chat show - a forum for stimulating conversation and the exchange of ideas or just an economical way of filling the airwaves? Gus Macdonald becomes host for an evening and invites his guests Russell Harty , David Frost and Kenneth Williams to discourse on the art of the chat show. Simon Dee talks about the legendary moment when he was given his own chat show and Jackie Collins sets off on the long promotional haul, knocking off one chat show after another