I've searched everywhere online and it seems everyone has trouble with this one. For anyone not aware, YouTube TV resides on a subdomain of YouTube at tv.YouTube.com so if you block YouTube, both are blocked. I subscribed to the Advanced parental controls and it seems like it is so close to working with the "app" level blocking because YouTube and YouTube TV appear as 2 separate apps there. I blocked YouTube and left YouTube TV unblocked but it still blocks both. Has anyone gotten this working?