Yes! You can download iwonder on your apple TV. Simply follow the steps below and make sure your Apple TV device is running on OS13 and onwards.
1. Launch the app store from your home screen
2. Click on the 'Search' tab and type in "iwonder".
Click on the iwonder (app icon).
3. Click 'GET' to download
4. Log-in (either with an iOS app or by typing in your email)
You can also sign-up if you don't have an account yet.
5. Finally, ENJOY your favorite documentary film!