I recently starting trialing T-Mobile Internet.
Thought I would describe one issue I encountered in case it might help someone else.
When attempting to use the Hulu app on Apple TV 4K with most recent tvOS, the Hulu app
asked if I wanted to change my Home location. I clicked Yes, however the change never made
any difference (I’m not sure it actually changed anything). Contacted Hulu. Initially they were pretty
lost as to resolving the issue. Called back the next day. This time I spoke with someone who
had the appropriate skills. First I needed to turn off Private Relay. This allowed the Hulu folks to
acquire the correct IP address for the Apple TV. They then sent a Home Location change to the app.
(I suspect I might have been able to do this myself if I’d turned off Private Relay). That change allowed
me to login to Hulu. Live TV worked fine. I then turned Private Relay back on. Restarted the Apple TV and Hulu app. Everything is working fine.
fwiw, the Hulu rep who ended up helping me said the Hulu apps for mobile devices are not sensitized to
location information from the ISP. The app on Apple TV is sensitive. The Hulu app was receiving location information from T-Mobile indicating the Apple TV device was no longer in its original location.