^Yeah, and it's not just the TAS stuff I want, but the music from later Filmation shows like Space Academy/Jason of Star Command, and particularly the gorgeous music from Flash Gordon, Blackstar, The Lone Ranger, and Zorro, which was in a classic vintage-movie style. Although I realize that the market for that music must be very, very tiny, so I doubt there'd ever be a box set.
Perhaps Filmation soundtracks would generate attention/interest if a company started off with the biggest, most visible brand Filmation ever used: DC Comics. The primary audience would be in North America, where DC--in comics, cartoons and films--is as recognized as Washington's face on the dollar.
Once DC scores broke ground, I think you would see a vocal demand for more filmation music--like TAS, or the live action shows (ex. Shazam, Isis, Ark II