This is due to bugs in the Tesla full screen browser. Location permissions are locked, so for certain cars, any URLs accessed via the browser think they are in Fremont, CA.
The location bug has possibly nothing to do with the hulu error. Here's how one can check. Go to the hulu ESPN+ hub and select a video. Those all display correctly. hulu refuses to even acknowledge this bug. And people claim Tesla is a bad software company? They got nothing on hulu.