Launched in late 2016, Twitter for Android TV is going away this week, probably for good. In a Tweet sent out this morning, Twitter Support says Twitter for Roku, Twitter for Android TV, and Twitter for Xbox will no longer be available starting Thursday, May 24.
While you may assume Twitter for any of these platforms is merely an extension of your timeline to a bigger screen, Twitter for Android TV is more about watching videos and scrolling through various Moments. It was also useful when Twitter had a deal to stream Thursday Night Football with the NFL, but that deal has been gone since since the season before last.
Anyway, if you use Twitter for Roku, Android TV, or Xbox, be prepared to see it disappear soon.