In 1995, PBS (Hugh Thompson & Robert Palmer, the critic not the musician) produced a comprehensive series on the history of rock and roll. There were other documentaries produced at that time with the same name so it’s a bit confusing. In this, part 7 of the series, the filmmakers examine the impact of Andy Warhol & the Velvet Underground on The Doors, Iggy Pop, David Bowie and Alice Cooper. They describe how glam became more theatrical, leading to bands like Kiss.