Go to the Settings and Sign in on the YouTube app. An eight-digit code will appear on your screen that needs to be noted down. Now open the link www.youtube.com/activate on Mac or PC or through your mobile device. You need to provide your Google account details.Further, type your YouTube activation code appearing on the login interface on your Apple TV.Tap on Allow Access, and your sign-in process will be accomplished.
https://sites.google.com/a/anydeviceactivate.com/youtube-activate/
https://sites.google.com/a/anydeviceactivate.com/www-youtube-com-activate/
https://sites.google.com/a/anydeviceactivate.com/youtube-com-activate/