Blues Night (1): Sonny Boy Williamson Sings

First transmitted in 1985, Blues Night presents rare footage of the harmonica blues player Sonny Boy Williamson, who gave B.B. King his big break in 1948. "He was on the radio doing live performances when I first came to Memphis. He put me on his show to do this one song – a lady saloon-keeper hired me that day and I’ve worked ever since," King explained to the Radio Times.