Synopsis

John Humphrys poses the questions as four more prominent figures face the daunting chair. Tonight’s challengers and their areas of expertise include BBC Watchdog’s Michelle Ackerley, discussing the classic television detective Columbo; Joe Fattorini, from The Wine Show, exploring the line of longitude two degrees west; Instant Gardener’s Danny Clarke, focusing on Sir Garfield Sobers; and comedian John Finnemore, delving into the ghost stories of M.R. James.