Hulu Live

I'm tending to agree with brookstom1.  The other posts are correct in describing the issues with identifying a location with TMHI's XLAT464 implementation and its IP addresses that are often hundreds of miles away from where the gateway (the "can") actually is. But there is one thing that's constant in the mix: the MAC address of the T-Mo can itself.

I suspect that what's happening with YouTube TV (the service I use) is that it captures my can's MAC address, and as long as that's my gateway, it relies on the home location that I set via computer, as Kmath described. Early on, I needed to reboot my can frequently (a problem that's been resolved), and my home electricity occasionally goes out. Both those situations typically result in my IP address (and location) changing. Yet YouTube TV kept working.

I was recently traveling (Philadelphia, Boston, and several locations in Maine and New Hampshire). At each new hotel (with different gateways and gateway MAC addresses), YouTube TV asked me if I was traveling, then gave me access with local stations in that area.

Interestingly, this even worked when I used a VPN service to connect to a server back in my home area, so I could get access to my local college's football game, which wasn't being broadcast in the city where I actually was staying. The server I was using was back in my home service area, but YouTube TV still asked if I was traveling. It seemed to know that I wasn't at home, but thought I was in a location where the game was being broadcast. I got to see the game, and I was a happy camper.  

So, yes, HULU could use a system like YouTubeTV, but chooses not to do so, for whatever reason (cost of changing their system, competition between competing services, etc.). Given the technology TMHI has chosen (their XLAT464 implementation), I would think that the cost would be enormous to change it to a system compatible with how HULU checks location. For now, to use an old Seinfeld meme, that means "No HULU Live for you."