Twitter pulled the plug on its official Mac app this past February, and its continuing to shut out other third party apps as well. The company tweeted that as of Thursday, May 24th, Twitter for set top media boxes Roku, Android TV and Xbox will no longer work. The company refers any of these device users to twitter.com for the "full Twitter experience."
On Thursday, May 24, Twitter for Roku, Twitter for Android TV and Twitter for Xbox will no longer be available. To get the full Twitter experience, visit https://t.co/fuPJa3nVky on your device or desktop.— Twitter Support (@TwitterSupport) May 22, 2018
The move isn't a huge surprise; Twitter hasn't always been super supportive of third-party apps. For example, it recently made changes to the Account Activity API that could stop push notifications and timelines from working as they currently do. If you really need to tweet from your television, there's still the Apple TV Twitter app, though we don't know how long it will be supported.