Use a portable travel router for the cell phone's hotspot to talk to and then let the router distribute to the TV, laptop, tablet, etc. This way the phone provider only sees one item connected to the hotspot, as many services purposely degrade if they see more than one device on the hotspot.
I use Visible for cell phone service, it is unlimited everything but does throttle the hotspot if more than one device directly connected hence the need for a router.
If you are a serious traveler that needs to work from the road, this video will help you out.
https://www.youtube.com/watch?v=Vu63IduXi5MCharles