Here's a copy of the e-mail I sent to the list at the front of this thread. If you feel the same way, maybe you could send it also...
Gentlemen (and Ladies, if any):
I have a request which, I suspect, would be echoed by most if not all of
your subscribers. When you transmit 4:3 program material, please
transmit it in 4:3, 480p or 480i (preferred) or use gray bars rather
than black bars when transmitting in a 16:9 format. When you transmit it
in a 16:9 format such as 720p or 1080i and add black bars, you prohibit
us from watching it in 4:3 and using gray bars to avoid burning in our
monitors. We must either zoom it and miss part of the picture or take
the risk or burning in our screens by keeping the shadow-box area
black. Most monitor manufacturers are now recommending gray bars as the
way to avoid burn in.
Off-the-air subscriber in Melbourne Beach