Currently, in my home we are set up for Digital cable through Adelphia, and we "renting" (?) a box through them (which seems a prerequesite for having digital cable). I have more than one TV, and I'd like to add the channels/capabilities to my other TVs but I'd rather not pay an extra $6.50 a month. What do you think about purchasing a cable box on Ebay? Legal ramifications aside, is it possible to use a cable box not assigned by Adelphia? I am interested in the Scientific American box that offers a coaxial digital ouput and an s-video output. Would this box work on an Adelphia system that works with General Instruments and Motorola boxes? BTW, is it "illegal" to use your own cable box?