'What is 4K?': Here's what it means to watch content in Ultra High Definition resolution

· 4K is often referred to as Ultra High Definition or UHD; it is currently the most affordable of the clearest resolutions available, capturing more detail and texture than any other format outside 8K. 
· 4K provides at-home viewers with a resolution of 3840 x 2160 pixels or about four times as many pixels as a regular full...