While reading about VHF on Wikipedia, I learned about a company called Pulse 87. This company broadcasts low-power analog television on channel 6, with the audio subcarrier appearing at 87.7 MHz. Low-power television is exempt from the digital tv switchover, so this analog broadcast works as a radio station at 87.7 MHz. This unusual radio station has a "hot dance airplay" format.
Pulse 87 currently operates WNYZ in New York City, while plans to operate stations in other cities (Washington D.C., Los Angeles, and Chicago) have run into various problems preventing their launch.
Wikipedia also suggests that digital television in the channel 6 frequency (83.25-87.75 MHz) has had problems with interference, so it's possible that the FCC might release that part of the spectrum for radio broadcasting.
Digital radios intended for the North America market are often confined to the 88.1-107.9 MHz range, so as a rule, this station's target audience is limited to those who have radios without that limit (such as imported radios with a wider range for FM, or analog-tuned radios that have less precise FM broadcast band boundaries.