I heard Pull Me Under on FM back in 1992 while traveling across country (with my wife, before we were married). I vividly remember saying "woah" and turning the volume up as the song kicked in... it sounded like a cross between Queensryche, Rush, and Iron Maiden.
After he sang "Watch the sparrow falling gives new meaning to...", I pulled the car over to the road's shoulder, set the parking brake, cranked it up, and closed my eyes so I could listen closely.
When the song ended, the DJ announced the name of the band, which I'd never heard of. At the next town, I found the nearest record store and bought the album.
The only other time I heard DT on FM was in the mid-late 1990s: I was also in my car when a college radio station played Metropolis Part 1.
Other than those two instances and a few times on Pandora, I've never heard DT on the radio (though I don't listen to FM anymore, and I've only listened to satellite radio a couple times).