Sixties star Helen Shapiro presents the story of a lost TV interview with the Beatles that was recorded in April 1964 and recently found languishing in a rusty film can in a garage in South London. Experts say it's the earliest surviving interview where Lennon and McCartney talk about how they met and discuss the song writing process. With contributions from the original TV interviewer Paul Young - who had never seen the footage, which was part of a regional television programme broadcast only in Scotland - Beatles expert and writer Mark Lewisohn and Dick Fiddy of the BFI.