So much variation. My Coby 32" ($139 @ Amazon on sale) has a very sensitive tuner, next best is my 52" 2007 Phillips, then my Sylvania and then my iView and Homeworx PVRs - the homeworx / iView has problems with a few of the weaker channels breaking up. I have also used a number of converters and set up customer's TV sets.
But the way they deal with scanning in channels, EPG, and dealing with duplicate channels is frustrating. Situated between 2 sets of translators, I get a lot of duplicate real and virtual channels. Some tuners pick the first channel scanned, some pick the last one scanned, and a few (very few) pick the strongest signal. Even fewer display EPG data beyond what is on the channel I am watching RIGHT NOW. The only devices that I have used with a decent EPG are my DTVpal converter (not as good since the demise of TVGOS) and the 2 PVRs. A few TV sets and converters have "Now/Next" epg - better than nothing I suppose.
Even leading consumer websites and magazines reviews don't test tuners for sensitivity, EPG, or any other important features OTA users are interested in. So choosing a decent TV for OTA use is still a crap shoot!