A:Answer I'm not sure why it says 'select HDTVs'. Maybe because you have to have a regular coax style antenna input? Or maybe they're covering their fannies on TVs which are now 4K or UHD and their antenna is officially rated at 1080p. Since you're picking up broadcasts off the air, I wouldn't worry about the latter issue. I'm not familiar with any TV stations broadcasting in anything higher than 1080p at this time. Not to say they couldn't in the future, but you'd be used to 1080p, so even if you couldn't take advantage of it, you'd never know the difference. As to the input, just look at the back (or side) of your TV. Is there an input for a coax cable? It's round, protrudes from the TV, has threads on the outside, with a small hole in the middle. It's usually labelled "antenna". If so, you're good.