Square Enix is looking at Android TV as quite the potential new stomping ground for their games. Whatever the reason for it may be, that is at least what it looks like the company is considering since they have updated Final Fantasy III through to Final Fantasy VI with support for Android TV.
All of those Final Fantasy games have received an update so that they can be played on Android TV natively. To celebrate this rather large update, Square Enix has also put all of those Final Fantasy games on sale, making it a good time to pick any of them up that you may not already have.
All four games have been discounted pretty nicely, with all of them now being available for $7.99 instead of their usual $15.99. So they are basically half price for a limited time.