https://techcrunch.com/2017/09/12/the-new-apple-tv-gets-a-4k-upgrade/ >The new Apple TV is here, and it offers 4K support. That’s the big reason to upgrade here, and given the growth of the 4K video content and TV hardware markets between now and the release of the last major Apple TV revision, it’s a very welcome improvement. >Apple’s new 4K streaming box also offers support for High Dynamic Range (HDR) video, which is a big improvement even for non 4K content. HDR makes for brighter images with better visibility throughout a range of lighting conditions and better color rendering, which helps makes movies and TV shows pop on the big screen (provided you have a screen that supports it).