I never tire of rewatching the BBC hip-hop documentary 'Bad Meaning Good' every once in a while. It's still brilliant. Scary to think it's gonna be 30 years old next year!
Amazing footage of Westwood at Kiss FM when it was still a pirate, as well as Run DMC, London Posse, Brixton Academy (those whistles!), Groove Records in Soho etc. Look out for a young Trevor Nelson!