This is just what we need right now: American Epic

A superb joint production from PBS and BBC, this series is just getting started and is going from strength to strength. A true celebration of American musical heritage. Lend it your ears and your eyes. You will not be disappointed.

You can find the first episode streaming here: http://www.pbs.org/video/3000889893/

In the UK, you will find this on BBC4. For non-North Americans, there does appear to be some geo-blocking, but a little VPN tunneling into the US will get that episode up and running right away!