Two excellent recent BBC4 documentaries about music have shown up on Vimeo, for those not in the UK:
Synth Britannia (about the rise of synthpop in Britain in the late 1970s/early 1980s, from early Kraftwerk-influenced acts like OMD, The Human League and Gary Numan to the wave of "fire and ice" duos), and
Krautrock: the Rebirth of Germany (which features interviews with a number of German experimental musicians of the 1970s, from bands like Amon Düül II, Faust, Neu! and Can, not to mention Iggy Pop rambling on about asparagus).
Bummer - both videos deleted.