If a message appears on your Apple TV asking for a Passcode, you may have content restrictions enabled. Restrictions work like parental controls, allowing you to restrict access to certain content on your Apple TV. You can turn this feature off by navigating to the Restrictions settings from your Apple TV home screen following the steps below.
- Select "Settings."
- Select "General."
- Select "Restrictions."
This article provides greater detail about content restrictions on Apple TV.