I first heard about the program "Alchemists of Sound" back in 2006. Having a severe obsession at that time with Delia Derbyshire, I attempted to procure a copy of the broadcast; though my inquiries to the BBC went unanswered. Luckly some kind person has recently made this available for public viewing.
This program documents the story of the BBC Radiophonic Workshop which created sound effects and TV/Radio themes for BBC starting in 1958; most famous for composing the Dr. Who theme. At least two workshop members also participated with David Vorhaus on the WHITE NOISE album. This program was originally broadcast back in 2003 on BBC Four.