A verbal request from your TV is pretty much equivalent to typing in an URL "by hand", and AFAIK people got sacked under CFAA for the latter, because of "unauthorized" access to data.
In my layman's opinion, there's a potential for a case here.
Correct. Example: this user logged into my service. Let's try to log into gmail with the same password. It worked. I'm authenticated, but not authorized.
AT&T won the unauthenticated iPad emails thing, putting weev in prison. As far as i can tell, i have to divine the intentions of the owner of any computer i connect to before i connect to it, or i'm breaking the law.
It certainly is unauthorized use of a computer... not a stretch at all.