Total newbie here... I have a Yamaha RX V663 Receiver that is connected to plasma screen via a HDMI Cable. The HDMI goes thru the wall so I can't remove it without doing a major remodel. Question: I have basic cable via coaxial and I want to watch it on the plasma. I cannot connect the coaxial to my TV directly. What are my most economical options? Can I connect directly to my receiver if not what other devices can I purchase as a work around? My cable company charges approx. $100/yr just to use their cable box so I would like to find a more economical long term alternative. Thanks!