Here's What's Known About Apple's 4K TV Set-Top Box

Apple is set to announce a new version of its Apple TV in September, alongside new iPhones and an LTE Apple Watch. The new Apple TV will support 4K video streaming and improved color. Apple plans to invest a billion dollars in original content, indicating a significant push in its TV strategy. The device will build on the 2015 Apple TV with an App Store, adding new live TV functionality but no over-the-top bundle or TV set.

What was the ambitious device introduced by Apple in 2015?

What type of new functionality is Apple adding to the Apple TV?