Help cant get Apple TV on my tv but it’s added on to my ipone

What is your model smart TV?

Select newish smart TVs may support the Apple TV app natively among their other smart apps. Apple maintains a list of supported models (series). On some TVs the Apple TV app may be pre-installed, on other models the user has to install it from the TV manufacturer’s app repository (“App Store”).

Unsupported TVs may connect an external streaming device that supports the Apple TV app. That can be an Apple TV box, Roku, Fire TV, Xbox, PlayStation, Nvidia Shield, ‘Chromecast with Google TV’ dongle, or one of the cable TV boxes that support apps.

List of Apple TV app-supported smart TVs and third party streaming devices - Apple

Get the Apple TV app or Apple TV+ app on your smart TV, streaming device, or game console - Apple Support

All the ways to watch in the Apple TV app - Apple Support

Apple TV app user guide for smart TVs and third party streaming devices - Apple Support

Do you have a smart TV that supports the Apple TV app? Or, are you using the Apple TV box from Apple?