It's airing on Norwegian TV right now, the two first episodes so far. Third one this evening, if i'm not mistaken. Very similar to A Headbangers Journey, but going deeper into things, as one'd be able to in a TV-series. I liked how he pulled out metal's origins in blues and classical music in the first episode (although that wasn't any new info for me as such...), but i think he focused too much on the wanking of Paganini, comparing it to guitarists like Malmsteen, which isn't that special for either metal or classical, and too little of the truely heavy music of Wagner, Bach and Beethoven. (Wagner did get one little mention, but far less than he ought to...)
I have heard N.W.O.B.H.M pronounced as a word, don't really remember where though. I think maybe Fenriz (of Darkthrone) said it as a joke once.
Looking forward to the genre-based episodes. Ep 2 about American proto-metal was pretty good...
B.t.w, also check out Sam Dunn's follow-up to A Headbangers Journey; Global Metal. Lot's of interesting things, especially from the middle- and far east. Discovered an Israeli band called Orphaned Land from that one, pretty cool. And the vocalist has some fucking good things to say about the conflict between Christians, Jews & Muslims (We're all sons of Abraham). Awesome to see a Jew with a Palestinian scarf.
And then there's that extra-thing for A Headbangers Journey that goes deeper into Norwegian Black Metal, couse he got a lot of hassle focusing only on the satan-stuff and church-burnings in AHJ. But i guess if you've seen AHJ, you've seen that one too... Anyway, it's here: http://www.youtube.com/watch?v=yjgri4YxsKQ (Sorry for going a bit of topic there, and Joe; sorry for bringing religion & politics up.)