I live in a fringe area for antenna reception of TV, and am having trouble finding a TV with a better ability to handle a weak signal. So far, I get more digital stations with an old TV and a converter box than with a new HDTV. I don't need advice on antennas or amplifiers. I need to know if TV brands vary among themselves and from other brands in their ability to handle a weak antenna signal. If so, what spec do I look for? Sony emailed me to phone their number, and when I did, the digital TV woman did not even know what a fringe area was! Some expert!