Just tried connecting by new DISH King Tailgater through the UDC to the main TV in my living room in my 3270RS Big Horn. Followed the instructions in the UDC as to which connection to hook to (second from right) Nothing. Then tried the other three coax connections in the UDC, nothing. Inside the cabinet above the TV (see photo) in the top cover plate is the three (yellow, red, white) sound connections and the HDMI connection below them. The second cover plate has two coax connections, the only ones in this area. The bottom connection connects the TV to normal cable and over the air TV watching. The top one was not used and I am assuming it is designed for satellite connection. That is what I used when hooking up the DISH satellite to no avail while changing the connections in the UDC. I eventually ran to coax from the dish through the slide and directly to the Wally receiver. That worked. So my questions are: Did I make the above connections correctly? If not, where did I go wrong? I really don't want to have to run the coax through the slide each time I want to set up the system. So if the coax wiring is messed up in my rig, how would I go about doing a direct connection (running new cable) to the receiver without going through the slide? Hate pulling down the coroplast and finding a way to feed the cable into the living area. Any ideas? Photos of areas attached.