Sadly, I spotted this thread too late so only able to watch (and record) the latter parts. No worries, I'll keep a look out for any possible repeat showings (it's also currently on Sky 174).
Also, while looking for possible repeat showings, I spotted PBS America are also showing an 8-part documentary about Country Music, split over Saturday (from 1.30pm) and Sunday (from 1.00pm).
I've always loved Jazz and Country in equal measure so for me it's a win-win!