Could someone be so kind as to explain to this dummy how to hook up a 322 or 522 to a second TV. Would this be done by the installer? I looked at the back of a 322/522 and for the second TV there are composite outputs and 1 other output, which I assume is the agile modulator output. It seems to me that the agile output has to be hooked into some kind of adapter or something. Can someone shed some light on this. Thanks.