Documentary about the musician Mike Oldfield, whose 1973 album Tubular Bells launched the Virgin record label and became the biggest selling instrumental album of all time.
More details: http://www.bbc.co.uk/programmes/b03cw8g0
And a very good article about it: http://leosigh.com/tubular-bells-the-mike-oldfield-story-excellent-bbc-four-documentary-video/