Netflix’s show House of Cards will be the first to stream in 4k. But wait what is 4k exactly?
4K, or UltraHD, is the latest generation of TV screen technology, replacing 1080p. Before 4K, the highest resolution signal available for movies and such was 1080i/p, which amounts to 1,920 x 1,080 pixels on that gargantuan TV screen you stare at so often. 4K’s resolution is about 4,000 pixels wide and about 2,000 pixels high, good for about four times the resolution of 1080p.