Even before this year's CES kicked off, we knew Ultra High-Definition was going to dominate the show. Then from the first press conference to the last, 3,840 × 2,160 resolution displays were a center piece of almost every major manufacturer's announcements. Leading up to the show, the CEA's board decided against using "4K" to market these 8-megapixel (1080p is two megapixels) displays, instead choosing Ultra High-Definition or Ultra HD. Of course not everyone followed along, in fact Sony was first to market in the US, late last year, with its "4K Ultra HD TV." The display is only one piece of the puzzle and plenty of questions remain, however. Like, "Where's the content?" and "Will I have to replace all my other home theater gear?" Questions aside, Ultra HD TVs are here and more are coming, so click through for these answers and to discover the slate of new Ultra HD TVs for 2013.