Your thoughts about the 'Romantic Warriors' Documentaries?

For fellows who had never heard about this documentary series, here is a Wikipedia about it Romantic Warriors: A Progressive Music Saga - Wikipedia

I have watched the first one on my dvd, the documentary focused itself on the present situation of the progressive rock industry, it is mostly comprised of interviews with bands, fans, and some record engineers. Overall, not a very impressive film, at least to me, since I was expecting to see more involvement with the musicians from the 70s' era. Besides, most stuff the documentary presented are already common knowledge among prog heads, there is really nothing new in it.

Right now, I am thinking about watching the second and the third installments, but the first one just discouraged me.