Changing the Auto Resolution Setting Some Samsung TVs experience compatibility issues with the automatic resolution settings. Verify that your streaming subscription is active and linked correctly to your Apple ID.
Adjusting Resolution Settings for Apple TV App on Samsung TV
Navigate to Settings on your Samsung TV. Select Support and then Software Update.
Checking for an update is the first logical step. Adjusting the picture mode or clearing the cache can resolve display conflicts that prevent the app from rendering correctly.
Adjusting Resolution Settings for Apple TV App on Samsung TV
Deleting the app removes any corrupted local data, and reinstalling it fetches a fresh copy from the Samsung App Store. Check if other devices on the same network can access the internet.
More About Apple tv app not working on samsung tv
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