Glad you enjoyed it. Over about the last half-decade, I've been watching as many documentaries and the like about music that have looked interesting and from time to time, some real gems are out there. 

I enjoyed the ones like Laurel Canyon, too.

There is another one out there on off-beat Christmas music by John Waters that is pretty good, too. It's called Jingle Bell Rocks!  Also, then there are those out there on the rise and fall of things like Tower Records, and emerging radio stations in the 70s and 80s.