Today we released a new Zattoo app version for Apple TV (v2.1). Along the new features (for example the TV-Guide) the app was merged with the iOS app. As such all apps for Apple devices get updated and synchronized simultaneously.
In order to continue watching Zattoo on your Apple TV, you have to install the new Zattoo app. You can find the link to the App Store in your old app under notifications or by searching for "Zattoo" in the App Store. After that you can delete the old Zattoo app. Your settings and preferences (for example your favorites) will of course remain.
In case you encounter difficulties by downloading the new app, please contact our support.