Okay it's a 55" cinemavision panasonic rear projection TV, model Pt- 51HX40B. There's a U-verse box connected to it via coaxial cable, the box is capapble of HD. It's plugged into antennae 1 on the TV, but how do I get the TV to show HD? I hooked up one of those digital conversion boxes...the kind for getting over-the-air for all the old TV's after the digital switch, and I put U-Verse as the antannae so maybe it would help, but it didn't. What do I need? Can someone specify the settings that the TV needs to be on or something? How do I even get over-the-air to be HD?