I just go to search and type in “documentary”.
There are a ton of really good documentaries about various classic rock albums. All of them can be searched via the words, “classic album”
I can’t answer your question but I can give you a tip.
Instead of paying for Acorn TV on Amazon many libraries offer RBdigital which gives you a free 7 day pass every seven days up to three times a month.
I enjoyed Australia’s Miss Fisher’s Murder Mysteries and now Acorn has a sequel involving her niece.
I made up a list before but there were some disagreements about them LOL. As an example, I stated Cocktail’ with Tom Cruise (yeah, him) is one of the pro-capitalist and conservative movies made.
Some good ones i think, in the grace of God, amid the vast majority to be rejected:
https://tubitv.com/movies/445085/time_changer
https://tubitv.com/movies/448281/amazing_love
https://tubitv.com/movies/372434/letters_to_god
https://tubitv.com/movies/314510/wwjd_ii_the_woodcarver