A check for YouTube TV
Identify the station by its affiliate and the market displayed on the account. Compare its live guide against the exact programme listing. When you check access away from home, use the service's own location guidance so the home network and the current local network stay distinct.
Check on the intended screen
Open the app catalogue on your actual device and confirm the publisher and region. Sign in only through the service or documented billing issuer.
Keep a title-level test
Use one title, episode or fixture that you can identify. Record whether the app launches, the account signs in and the item plays.