Hello Mar_126,
Welcome to Apple Support Communities. When did you first noticed this issue? Was it working as expected in the past, or this is the first time to use the TV app on your TV?
To get started, let's make sure that you're using a compatible device. Check your TV App supported devices using the following link:
The Apple TV app is everywhere.
If you're using a supported device, let's reset the Apple TV app, and test again. Here's how:
Reset the Apple TV app or Apple TV+ app
Resetting removes your personal information and restores the apps to their original settings. If you plan to sell or give away your device, you might want to reset the Apple TV app or Apple TV+ app. If you want to uninstall the app, you can also reset it.
-Open the Apple TV app or Apple TV+ app.
-Go to Settings.
-Choose the Reset option.
If you lost or can't access your device but are still signed in to the Apple TV app or Apple TV+ app, remove the device from your Apple ID device list.
If you reset the Apple TV app or Apple TV+ app on a smart TV that's also signed in to the Apple Music app, the Apple Music app restores to its original settings.
If the issue persists, try the following steps:
Need help?
For more information about the Apple TV app or Apple TV+ app on your smart TV, streaming device, or game console, see the Apple TV app user guide.
If you have issues installing the Apple TV app or Apple TV+ app or connecting to the internet on your smart TV, streaming device, or game console, contact the manufacturer.
The Apple TV app and Apple TV+ app availability might vary by country and region. Learn what’s available in your country or region. The Apple TV app and Apple TV+ app features and supported devices also might vary by country and region.
On Amazon Fire TV, Android TV, and Sony TV devices, you can't purchase content from the Apple TV app. You can buy, rent, or subscribe on another supported device and then watch in the Apple TV app on your Amazon Fire TV, Android TV, or Sony TV device.
Get the Apple TV app or Apple TV+ app on your smart TV, streaming device, or game console
We hope this information is useful. Kind regards.