Remove your Chromecast with Google TV from your account

From your account in a browser

1. Go to https://myaccount.google.com/device-activity.
2. Make sure that you log in to the Google Account to which your Google TV is linked.
3. Find the Google TV that you'd like to remove from your account, then select it.
4. Select Sign out   Sign out.

From Chromecast with Google TV

1. At the top right, open the user profile icon ​​select Settings.
2. Open Accounts and sign-in and select the Google Account that you want to remove.
3. Select Remove Remove account.