SIR GEORGE MARTIN To celebrate what would have been Sir George Martin's 95th birthday today, here's John talking to Bob Harris about Sir George, the Beatles' producer, on 17 March 1975 for BBCTV's Old Grey Whistle Test. Q: Again John, something really this always fascinated me is the working relationship between yourself and George Martin, because you were talking earlier about wanting to be in control of things and I get the feeling really that in terms of the working relationship, and you must