Apple TV on multilple TVs

Are you referring to the Apple TV App or the Apple TV hardware device?

if it’s the Apple TV App then you need to know that only certain models of certain brands of smart TVs support installation of the Apple TV App. See the link below.

https://www.apple.com/apple-tv-app/devices/

If your TV is not on that list then the only way to get Apple TV App on it is to buy and connect the Apple TV hardware.

Not sure what you are asking, are you referring to physical Apple TVs (if so the answer is yes), if you are referring the Apple TV app, then the answer is maybe but the TV's have to support the Apple TV app. You can find out which devices support the Apple TV app by clicking:

https://support.apple.com/guide/tvplus/welcome/web