I’m trying to get the Apple TV from my Apple Phone and add it to my Sony smart tv
How do I add an existing Apple TV+ from an existing app on my I-phone to my Sony smart tv?
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If your model Sony TV supports the Apple TV app, then you can use that app on your smart TV and just sign in.
List of Apple TV app-supported devices - Apple
The Apple TV app may be pre-installed or may be downloadable from the Play Store.
Unsupported TVs may need to connect an external streaming device that supports the Apple TV app. (Apple TV box, Roku, Fire TV, Xbox, PlayStation, Nvidia Shield, Chromecast with Google TV dongle, select cable boxes.)
Get the Apple TV app or Apple TV+ app on your smart TV or streaming device - Apple Support