Your tv should have both ATSC and NTSC tuners in it. Try and re-scan for channels. Also it will depend if you have an indoor or outdoor antenna and how close and in what direction the tv towers are located.
Once the digital signal transition occurred last weekend, I was no longer able to get a broadcast tv signal. I don't have cable. I was not able to get anywhere referencing the manual. I cannot get "signal strength" even as an option in the TV menu. My dad thinks the "A" at the end of the model number stands for "Analog" but that makes no sense to me. I have a Radio Shack antennae attached which, when I bought it, said it was Digital Ready or something to that effect.
Any insight into this problem would be appreciated.