Change Restrictions preferences in the Apple TV app on Mac
In the Apple TV app on your Mac, use the Restrictions pane in TV preferences to prevent access to the iTunes Store, shared libraries, and certain types of content. For computers with multiple user accounts, you can set different controls for specific users but still allow unrestricted access from administrator accounts.
To change these preferences, choose TV > Preferences, then click Restrictions.
Note: Before making changes, you must click the lock and type your administrator password.
Select options for preventing purchasing, subscribing, and viewing videos.
Choose the rating system for the country or region you’re in.
Select options for restricting access to items by ratings and type of content. An administrator password is required for previews and purchases of restricted items when you click the lock to prevent further changes.
Click the lock to prevent further changes
Click the lock icon to prevent unwanted changes to restrictions by requiring an administrator’s password to unlock.