WLFM is a FM radio station located at 87.7 FM on the radio dial It also it located on Channel 6 on my television How is this so?
TV channel 6's audio frequency is 87.75 MHz FM, so it's a side
effect of the fact that WLFM-LP is actually a low-power TV station
on analog channel 6.
Like many of these stations, the people who run WLFM are
programming it as an FM radio station. "Pulse 87.7" in New York
City is perhaps the most prominent example of the phenomenon.
Most modern radios "tune down" to 87.7, which is actually just
before the start of the FM band (88.1).
The side effect applies to any TV station on analog channel 6.
Until the June 12 digital transition, many full power channel 6
outlets were heard on 87.7 - including ABC affiliates like
WPVI/Philadelphia and WSYX/Columbus. Many of those stations
promoted it, reminding commuters that they could hear audio of
newscasts in the car.
TV stations on digital channel 6, even if they broadcast on that
actual channel (like WPVI), do not have the same ability...since it
only works for analog TV.