Apple TV 4K adds HDR and faster performance

The new Apple TV 4K adds support for 4K video (naturally) as well as HDR, or High Dynamic Range, making for a significant upgrade to a product Apple once called a "hobby." The 4K resolution offers four times the pixels of the current 1080p HD model, while HDR provides a greater range of richer colors with supported titles and TV sets. Orders begin Sept. 15, and it ships starting Sept. 22. Customers who've purchased HD movies will receive upgrades in their iTunes libraries to corresponding 4K versions at no additional cost, and new titles in 4K will be sold at the same price as HD versions. Apple said that it's working with Netflix and Amazon Prime Video to bring their 4K libraries to Apple TV.