Like QI but without all the difficult stuff, As Yet Untitled brings you amusing chat, skilfully directed to a destination via some anecdotal coordinates. Rounded human personas do better in this environment than people who seem to be rehearsing new material, and so it proves tonight, where Russell Kane spends yet more time talking about his mum. More enjoyable are Lucy Montgomery, who has had trouble in Iran, and Bob Mortimer, who explains how he became "the cockroach king" and his generosity with M&S vouchers.