If ever a pop group was destined to be boxed for posterity, it’s Talking Heads. It’s no surprise that Once In A Lifetime arrives spiffed up in hardback, warm with the words of novelists and academics, and augmented by DVD like some handsome Upper East Side gallery catalogue. Greil Marcus once wrote, disapprovingly, that in New York “most punks seemed to be auditioning for careers as something else”. Talking Heads, n