I first got in interested in folk music via a BBC programme featuring Pete Seeger. This would have been 1960, I think, and the show had Pete singing, playing his banjo and 12 string guitar, and talking about folk music. It was a fabulous introduction to folk music as Pete covered a huge range of material. An English ballard "Golden Vanity", a cowboy song " The Strawberry Roan, Woody Guthrie's "Pastures of Plenty", a Leadbelly field holler and so on. Great stuff. I bet the BBC don't have that programme in their archives! But I have!