This, for sure. When Ghost came out in 1990 and became a sensation, you heard Unchained Melody all the time.Now it makes sense! Same phenomenon that brought songs like "Stand By Me" and "Unchained Melody" back to the radio and chart decades later -- teens and 20-somethings hearing them for the first time at the movies. I guess WKSS was one of the stations that didn't bite on the Beatles revival, probably because it was still trying to become the dominant CHR in the market against the established WTIC-FM, which wound up going in a Hot AC direction by removing most rhythmic and all rap from the playlist in the early '90s.
Also, there were a lot of covers of songs from the 50s and 60s that were made in the late 1980s. Los Lobos had a huge hit with their cover of La Bamba that was made for La Bamba (the movie) in 1987. It was on the radio very frequently.