YouTube TV only allows you to stream on a limited number of devices at any one time. If three people are already streaming on three devices simultaneously, all using your YouTube TV account, then it won’t work for you.
Close and restart the YouTube TV app or your web browser. If you’re trying to stream through the app on your phone or another device, fully close and restart the app. If you’re streaming on your computer, fully close and restart your web browser. After the app or browser starts back up, check to see if YouTube TV works.
