Tangerine Dream and a host of European psychedelic bands were doing that stuff nearly 50 years ago. Pink Floyd, Kraftwerk, early Genesis before the departure of Peter Gabriel, etc... The first song of that type to get a lot of airplay on AM and FM in the States was Kraftwerk's "Autobahn" in '74. Electronica was normally played on FM only outside of the largest markets.
If you came to someone's house and heard that stuff blasting, you knew they were tripping balls. If you had something important to discuss with them, it was going to have to wait a day or two.
That weirdo playing keyboards on "Disco Apache" looks like he's playing a Korg synth. A step down from a Moog but not as expensive. That was videotaped after the banning of the "Mellotron", the favorite weapon of early Pink Floyd and Genesis, along with many other bands of that genre and era. You could do about anything you wanted with a Mellotron, but it was putting session musicians out of work left and right. Out with the new and back in with the old.
Young Teenage Pigmeat would have given his eye teeth for a Mellotron. I could have been Pigmeat Wakeman!