maybe all your channels haven't gone digital yet (i know, this close to June and still....)
I'm missing my CW Network channel (WAZE-TV) because although TVFool.com shows it in digital, the channel's homepage says they're not going to even turn on their transmitter until AFTER the transition.
as with all threads started about reception, your zip code will come in handy so we can look into the websites to determine the channels you have in digital and how likely you'll pick them up and the right equipment needed to do so. but i will say those '
DTV antennas' are nothing more than a waste of money. i got a ancient SEARS set fromm the 1960s (non-powered) that picks all the ones that are digital and i just sat it on the ground outside and ran the cable inside.