For simplicity's sake we'll refer to the technology as 4K here, but you will find it called Ultra HD just as often - it essentially refers to the quality of the video picture you're seeing ...

The Motion Picture Trilogy, which includes both extended and theatrical editions, in 4K Ultra HD. Right now you can get this ...

Director Robert Eggers’ macabre masterpiece creeps from silver screens to home theaters in the 4K disc format in “Nosferatu.” ...

A 4K screen has a resolution of 3840 x 2160 pixels, which is also sometimes called Ultra High Definition (UHD). This is four times as many pixels as Full HD 1080p, which has a resolution of 1920 x ...