From your account in a browser
- Go to https://myaccount.google.com/device-activity.
- Make sure that you log in the Google Account where your Google TV is linked to.
- Find the Google TV you'd like to remove from your account, then select it.
- Select Sign out Sign out.
From Chromecast with Google TV
- At the top right, open the user profile icon select Settings.
- Open Accounts & Sign In and select the Google Account you want to remove.
- Select Remove Remove account.