It's very late, so I am not going to write a full proper post tonight. However, I have seen a lot of interesting TV today that I shall review tomorrow. For the moment though, may direct you to two excellent documentaries I've just seen on BBC4:
Pandemic: A Horizon Guide - which uses the conventional documentary style of voice-over, cutaway clips and talking heads with captioned names below.
Surviving Progress - which uses more artistic and stylistic approach in the way it shows its clips, and does not use the traditional captioning of someones name on-screen when they're first shown.