I'm thinking of replacing the 27" tv in the bedroom. I now have a Directv HD receiver so I can pick up HD channels. We only watch this tv from the bed which is 13 feet away. At that distance, could the human eye detect a difference between Hd resolution and standard TV resolution on a 34 inch television? I don't mind paying the extra for the HD resolution but if I won't be able to tell a difference from my viewing distance, it seems kind of silly not to just get a big standard tv for a couple of hundred less dollars.