I'm with Sky (satellite provider in the UK), and have the Sky HD box. When I got it installed, the guy said that because there was only one dish on the apartment roof, I wouldn't be able to record one channel while watching another, since the Sky box has two satellite coaxial sockets. Now, I really don't understand why I couldn't just split the single satellite coaxial that I have into two using a splitter, and put both of those into the box. What is the reason why that wouldn't work? Would using a splitter cause the signal strength to diminish? I'd really like to be able to record two channels at the same time in my current setup.