If you have a Roku, Fire Stick, or an Apple TV - or if your TV is connected to a PC or Mac - you can stream the whole series on the PBS app or PBS.org. For a limited time. @jafant, APT has it on the app.
Some of it is very good; the music clips segue marvelously. Some of it is rehash of well known tidbits. But overall, any show that shows an engineer/producer at a console demonstrating the different contents of tracks on a well-known song can be fascinating.