Legally, you're allowed to use your own box provided you block channels that you aren't suppose to recieve. I always thought it was a rumor but where I am in NYC, if you look at the bill, you only pay for the service, not the service times number of outlets. They just charge you a rental fee per converter and remote control. At our weekend house in NJ, they don't use converters for the TVs. You pay for the service and can recieve it on any TV thats connected. And no, you don't have to watch what the other person is watching...