I do not see FaceTime on my Apple TV (A1635)
Because the Facetime App is not shown on my Television screen when I started with my Apple Tv 4 Model: A1625 and 4 generation.
[Re-Titled by Moderator]
Support for FaceTime on Apple TV, is specific for Apple TV 4K (2nd generation or later) — not A1842 or earlier.
Use FaceTime on Apple TV 4K (2nd generation or later) - Apple Support
