Hello,Lantern49!
Thanks for using Apple Support Communities! From your post, we can see you've been using How to contact an app developer, and you're unable to play Servant from Apple TV+.
Because this show is part of your Apple TV+ subscription, we'd want to make sure that you're signed in to the Apple TV and the account is active. Check this out: Watch on Apple TV (4K, HD, and 3rd generation). We're sharing it because it shows you how to view this information and is part of the Apple TV app User Guide.
If all is good, the next step would be following this guide: If you can't watch or stream movies and TV shows in the Apple TV app. You've completed some of these steps already but we want to make sure to check everything including to see if downloading the shows might help or testing this on a different device.
If it's still not working as it should, Contact Apple Support. They'll be able to narrow down why this specific content isn't playing.
Kind regards.