When BB set up my TV with the built-in tuner, they connected my antenna to the cable input. When they scanned the channels, it only picked up UHF analog channels and the digital VHF-NBC channel. I later tried the antenna input but got no results. I moved my antenna in the attic and went back to the cable input since it was receiving at least a digital signal. I finally tried the antenna input again and rescanned and instantly picked up all of the digital channels.
I am now watching ABC, NBC, CBS, FOX, WB, UPN, PBS, and TBS in HD format with a minimum signal strength of 98%.
I am in Woodstock, GA using a Channel Master 4228 antenna with a CM7777 pre-amp in my attic.
Now I can watch the Falcons this weekend in HD!