Our local CBS affiliate in OKC changed to VHF digital from UHF digital for some unknown reason and many viewers have lost signal here. I am within 5 miles of the tower and get "no signal" using a Zenith Silver Sensor which worked fine for VHF before the switch (although it is a UHF antenna I am close enough that it worked). They admit they are only at 80% power for some stupid reason. Thankfully I have Dish HD and use it for that station's reception.
I suspect the problem may be your antenna. Most indoor antennas (Silver Sensor included) are a compromise of size vs. function. Could you not fit a CM4221 clone in your attic? I get them locally for $25 each and pull in stations from about 50 miles away no problem.
With regards to the other thoughts in this thread, for Canadian OTA, all the major networks are broadcasting digital and analog. Hockey night in Canada on CBC-HD is great! The trouble is, there is almost no PSIP data. I think CBC and CTV are the only ones showing data (maybe SunTV too) Omni 1 and 2, and CityTV are not showing PSIP data. My EPG just shows (DTV program) where the guide should be.
OTA is alive and well though, and I cancelled my cable 4 months ago and haven't looked back. I'm getting ABC, CBS, NBC, Fox, PBS, MyTV, TheCW, CBC, CTV, Omni 1, Omni 2, Global, CityTV, and SunTV. Most of them are in HD. And this is all happening on my Samsung HL67A750 w/ built in ATSC tuner.
