In 1968 Joe Cocker had his first and biggest hit with A Little Help From My Friends - what was then, and arguably remains, the greatest ever cover version of a Beatles song. He then performed it live with his band, on a BBC show called How It Is - a kind of forerunner to The Old Grey Whistle Test.

It's a fantastic performance, which happens to be captured by studio direction so bold and experimental that it's appropriate to describe as mind-blowing even now. It's astonishing, and must be one of the best pieces of live music footage in the BBC archive. 

So watch this to fully appreciate why Joe Cocker, who has died at the age of 70, was one of the greatest singers this country has ever produced. And what amazing stuff TV directors were getting up to (and quite possibly taking) in the late Sixties.