I had a 2010 of the model. They wired it so the receiver had to be in the bedroom. Yes, even for the living room tv. I rewired mine from the area in the basement where the outlet is back into the slide where the living room tv is. The bedroom tv was just for antenna tv and the was ok with me.
On edit, this is for satellite tv. If you really mean cable then wire it in at the side of the camper and turn off your antenna booster which will let the cable signal go through it. When in doubt, pull the receptacles out and trace wires.