Don Bruder wrote:

A dollar says that what you've actually got is a station in your market
that has the DT license, transmits its primary signal on VHF in analog,
("business as usual") and operates a UHF "translator" (possibly at a
reduced power level) that's simulcasting the same material as the
analog/VHF signal (and probably one or more "extra" sub-channels) in
digital on the UHF frequency. When the switch hits, expect the VHF
signal to go dead.

Don, you really need to stop posting misinformation like this. Many VHF stations
are broadcasting a DTV signal on a temporary UHFfrequency. When they kill their
analog VHF broadcast, it will be replaced with a digital VHF broadcast.

Again, if you'd like a reasonably understandable article on the topic:
http://www.hdtvexpert.com/pages_b/MusicalChairs.html

The whole point of the switch is to get broadcast TV off the VHF bands
so they can be used for other purposes. Leaving some stations on VHF
would defeat that purpose. ("low power" stations are the exception -

No, it isn't. The frequencies that are being auctioned off are high UHF.

What may be the source of your confusion is a proposal to utilize the "white
space" VHF frequencies for other purposes.

Currently, VHF TV channels are not allowed to be adjacent to each other so they
don't interfere. That leaves a lot of unused VHF frequencies around the country.
IIRC, the thinking is that when TV goes digital, there won't be as great a
potential for interference and thus those blank channels could be used for other
purposes.