I have a 522 with tv 1 in our room and tv 2 in our daughters room. She recently got in trouble and we have decided to take the sat away from her. I put the 522 in single mode, but from the channels changing from what I changed it to, I am guessing that she can still see what we are watching and able to change the channel. Is there any way I can "turn off" tv 2 so that she can't see the sat what-so-ever?