Radio 4 listeners have been hearing trailers for this show for days so they may well think, when they settle to the whole thing, that they've already heard the best bits. Jon Culshaw opens the very case that contained old tapes and acetate recordings of Morecambe and Wise's early broadcasts form the 1950s. Ernie's widow, Doreen, found them in their garage and took them to independent producer David Prest who, with Stewart Henderson, crafted them into this essay on the development of the duo's comic style from variety act to TV stardom.