Apple tv

i'm not sure if this list is up to date

Apple TV app - Devices - Apple

but if the model tv you have is on it it should be in whatever app store it use

if the tv does not support the app then

try reading

All the ways to watch Apple TV+ - Apple Support (IE)

Vizio smart TV should have all its apps pre-installed through the system software. Users can’t add to that.

How to add an app to your VIZIO smart TV - Vizio Support