Story Of Pop
The Story of Pop was the title of a 26-part documentary series first broadcast on BBC Radio 1 between September 1973 and March 1974. The series was introduced by Alan Freeman and produced by Tim Blackmore. A 26-part "weekly encyclopaedia" was also published by the BBC to coincide with the series.
An article on David Cassidy was in Part 6. Click the image below to read the article.