Can't view TV on ST app beyond WiFi range

I’m a newbee to SmartThings. I was able to connect my Samsung smart TV to the ST app and watch it on my tablet as long as I was in WiFi range. Is it possible to set up the app and TV so I can stream what’s on the TV to my tablet.
We have an RV and this would be a great option for watching TV when we’re on our RV miles from home.

This forum was set up several years ago so customers with the smartthings hub could help other customers.

Samsung has a separate official forum for their smart TVs and appliances which also includes employee participants. You might try asking your question there as well, usually you’ll get a quicker answer that way if it’s about TVs.