My parents just bought a condo and it came with the nice HT system. The receiver is a Denon AVR-486. They have Comcast cable tv. Since there is construction going on with new condo around them they keep losing their signal strength on the digital box from Comcast. Comcast will come out but it could be days before they show up. Meanwhile when the signal is too weak the Comcast digital box will not work correctly. I can receive cable if I wire around the Comcast box on other tv sets in the Condo. I can't figure out how to wire around the Comcast digital box with the Denon AVR-486. I am a novice at this. The back of the unit doesn't have any specific co-axial input for a direct connect of the cable. The only coaxial I can really see maybe the antenna. On the other tv I went around I plugged the cable directly into that port. Is there a way I can go directly with the cable wire into the Denon AVR-486? My Dad would really appreciate it.