Originally Posted by bubbles
If the other end of that rooftop coax is connected to the Movievision box it is connected incorrectly. That cable is the sat antenna feed and would connect to the sat receiver.
The splitter that we have installed from the factory is one that passes DC straight through and designed for satellite TV systems. The output of the splitter is connected to the TV port on the Movievision.
Whatev. It's irrelevant because we'll never have satellite. I have toyed with stealing that cable for a roof-mounted cellular antenna, though.