So tvOS 9.2 is shaping up to be a nice release:
Throughout the tvOS 9.2 beta testing process, Apple has been steadily adding new features. Today's third beta introduced a pair of new features that are quite useful: dictation and App Store search for Siri. We've made a quick video that shows off the new features and how they work on the fourth-generation Apple TV.
With the new dictation option, it's now possible for Apple TV owners to dictate text and spell user names and passwords rather than typing them. After installing tvOS 9.2 beta 3, users are prompted to enable or disable dictation.
Apple Remote app support helps a lot, but Siri dictation make so much more sense. Note tvOS 9.2 beta 3 also brings app folders, Siri App Store search, as well as support for Bluetooth keyboards, iCloud Photo libraries, and Live Photos — all presumably headed for a public tvOS 9.2 release at Apple's next event, March 15th.