Just noticed that it's one of those weird 1366x768 "720p" ones, too. Built as a compromise between an actual 720p resolution (which would be lower, actually, at 1280x720) and 1080p, and not very cooperative when it comes to scaling and pixel mapping over HDMI - fine with VGA, but does it even have a VGA input?
How old are these sets, I wonder? Does mean it has a higher resolution than true 720p, but if you plan on gaming on it, you miiiight not like the results if you're not using a 360 (it'll support weird resolutions thanks to the internal scaling, whereas the PS3 will try to feed it a true 720p signal and it'll be slightly off...)
Part of the processing of incoming HDMI signals in general (not computer stuff, this seems like it is, weirdly, using a panel type that was intended as a compromise resolution to enable PC monitor usage, but doesn't have the usual accouterments to fulfill that role)... But in general, the processing it does to the signal to pretty things up and make 'em fit ought to take care of it for the most part and at 32" it might not be a big deal, but it is an odd resolution that isn't actually 720p though it was marketed by some reputable brands as 720p (and remains so by less than reputable brands - sometimes even marketed as "1080p capable" or something like that, which just means it'll take a 1080p input and scale it down, shady tactics and good on Phillips for not going down that route).