If you’re looking for the ITVX Help area, it’s over here.
On the website
Click on your name at the top of the page, and select Sign out from the drop down menu. When signing in again, don’t forget to uncheck ‘keep me signed in’ if you’re using a shared or public computer, to prevent other people from accessing your account.
On your mobile
Go to the Settings menu at the top of your screen and select ‘My ITV Account’ you can sign out from there.
On your TV or games console
Navigate to the settings menu at the top of the screen and select sign out.