http://www.techradar.com/news/amazon-prime-video-has-finally-landed-on-apple-tv

Around six months after it was first promised to be coming “later this year” by Tim Cook, the Amazon Prime Video app has finally arrived on the Apple TV. It is indeed still “later this year” but barely. 

On the iTunes store, the iOs app has been updated to version 5.0, bringing support for the iPhone X as well as universal search. Most notably, though, the tvOS app is now available on Apple TVs from the third generation and later.