"By the eighties, a lot of radio stations, realizing the size of the market out there, had started playing sixties music again. They called it "classic rock," because they knew we'd be upset if they came right out and called it what it is, namely "middle-aged-person-nostalgia-music." It's a very popular format now. You drive through a major urban area and push the "scan" button on your car radio, and you'll probably hear a dozen "classic rock" stations, ten of which will be playing "Doo-wah-diddy-diddy." (The other two will be playing commercials featuring "Doo-wah-diddy-diddy." We hear "classic rock" being played constantly in elevators, department stores, offices, churches, operating rooms, the space shuttle, etc. Almost every sixties group with at least one remaining non-dead member has reunited and bought new dentures and gone on tour, sometimes using special guitars equipped with walkers. And so, because we get to represent the world's largest summer horde, we get to hear Our Music all the time. We're wrapped in a snug, warm coccoon of sixtiesness, and we actually think that we're still With It. Whereas in fact we are nowhere near It. The light leaving from It right now will not reach us for several years."
January 1, 1970
https://en.wikiquote.org/wiki/1960s