My Winnebago came with one coax inlet. There is a switch box in a front cabinet to select between satellite, catv, or OTA antenna. I have used the coax inlet for both catv and satellite at the same time. At the inlet point, I added a "power pass one side diplexer." Kind of like a splitter, but it MUST pass power on the satellite side. Then behind the switch box up front I used the same type diplexer to split the catv and satellite signals for their separate coax with satellite coax going to the sat box and then to the switch box, and catv coax going directly into the switch box. It worked great, even such that I could watch satellite on the bedroom TV while DW watched catv on the lounge tv.