tomm00,
I have dish network and when i first set up all the tv stuff I had a similar problem. The satellite connector to the bedroom worked fine the signal went right through. However the living room sat tv line had a short in it. There are several things to check this out. First Heartland uses RG6 cable which is what is needed, however they don't use the good ends on the end of the cables. You will need RG6 Type F Compression cable tv ends
http://www.homedepot.com/h_d1/N-5yc...splay?langId=-1&storeId=10051&catalogId=10053 a cable tv wire stripper
http://www.homedepot.com/webapp/wcs...langId=-1&catalogId=10053&productId=100605450 and a Type F Compression tool
http://www.homedepot.com/h_d1/N-5yc...splay?langId=-1&storeId=10051&catalogId=10053 . All of this is available at home centers and any electrical supply house near you. These connectors do not come off like the heartland ones when there on there on. They also flow more data for better picture and HD viewing. Now you will need to go behind each connector on the coach, behind the UDC and in the bedroom and living room. When you don't use one of these style wire strippers you can get the fine sliver grounding braid warped around the copper center wire, this is the short! I went around the coach and did every connector 5 behind UDC, 1 in Basement, 2 in bedroom, and two in living room. Still no signal to the living room. Then I realized that the sat cable behind the UDC was white and the Sat cable in the living room was black, when the pop outs are put on they are spliced in so I followed the cables still black as they run outside under the extended pop-out and if you drop the underbelly a little where the wires enter the frame there are the splice black wire to white. you can pull the slack out of the frame and redo these 4 ends also. That is where I found my short. The sat cable end from the UDC had the fine sliver ground wires wrapped around the copper center wire. Look right into the cable tv ends and you will be able to see this if there is a short. Put the new ends on and connected the wires back together and now the living room tv got the sat signal from the UDC.
Hopefully this will work for you too. I rather do things myself and my dealer is about 100 miles away. Now your coach could also have a wire that is cut into by a screw or something as well and that would require running new lines. But give it a shot and let us know how it goes. When I return home I will try to post a pic of the cable end that had the short.
Regards,