ChannelFlipper: That's right. In fact, after KPRZ went under, the KIIS-AM-FM thing was a "shadowcast"---with KIIS-AM playing the same music, in the same order, as KIIS-FM, just with a different jock and a few minutes behind KIIS-FM. When the simulcast rules were revised, actual simulcasting began, leading to my all-time favorite legal ID:
"102-point-seven KISS-FM is K-I-I-S AM and FM, Los Angeles."
("KISS-FM is K-I-I-S AM?")