After announcing an updated version of Apple TV early on Thursday, Apple released a new version of iTunes (Windows and Mac) to support the changes. The new iTunes update also adds an option that enables users to choose a dark background for Grid View and improves accessibility. You will need the iTunes update in order to use all the new features in Apple TV.
The Apple TV update adds more content and extra features to the set-top box. Notable improvements include a redesigned Menu to help you get to your content more quickly; iTunes Extras, which lets you buy behind-the-scenes content from your favorite movies; and iTunes LP support, so you can now view iTunes LP content while listening to music on Apple TV. The update also improves photo browsing, bringing face-recognition and image category sorting to the Apple TV.