A 4K screen has a resolution of 3840 x 2160 pixels, which is also sometimes called Ultra High Definition (UHD). This is four ... t always the case. Though HD and SD sources, like cable TV, will ...

Samsung's UHD upscaling technology further sweetens the deal, enhancing SD, HD, and Full HD content to near 4K quality. While you won't see old films and TV shows magically displaying as they've ...