Hello Everyone! Sign in OnlineOpen the Tubi app. Click on Sign In or Register. Select Sign in Online. ... Now go to tubitv.com/activate on a web browser such as Google Chrome, Safari, etc. ... Click on Sign In. Now, you can enter the activation code that appears on your Apple TV screen. Click on Submit and you'll be all set! For more go to:- Tubi.tv Activate | https://www.channelactivation.net/tubi-tv-activate/