I remember my Uncle Derrick telling me that the local teddy boys slashed the seats at the cinema in King’s Lynn when they showed “Rock Around The Clock” in 1956. He was a bit vague about whether he’d joined in or not, but I suspect he might have done. There was still lots of excitement when Bill Haley And His Comets pitched up in the UK the following year, as this footage shows. The commentary – “just dig those happy cats and not a square in sight” – sounds like something from Harry Enfield and Paul Whitehouse. Marvellous.