Linking between TV and other apple tv apps broken after most recent update.

After the most recent update, linking between the TV app and my other streaming apps got hosed.

I have 2 other apple tv's, they were unaffected.

The closest I can get to fixing it is to go into TV, search for a show in one of the other apps, go down to "How to Watch" go to the app in question (they all say "get" despite being installed and working independently), select it, it THEN asks to connect the app to the Apple TV app. I select connect and get a spinning indicator of death.

I've restarted the Apple TV several times, it's had NO effect.