How to back up your Apple TV

Steps to  back up your Apple TV:

• Go to the Home screen to access the settings.
• Go to Accounts and select it.
• Now you must choose between iTunes and the App Store.
• Select the Add new Apple ID option from the menu.
• Select Enter New when the prompt appears.
•  Fill in the additional Apple ID Sign In information.
• Select 'Continue' from the drop-down menu.
• Enter the secondary Apple ID's password.
• At the bottom, press the Sign In button.

Read More: How to backup iPhone X files and perform iTunes restore, Recovery Mode restore, DFU Mode restore on iPhone X