most coaches come with the traditional COAX connection for CABLE tv from an rv park, but not necessarily a separate SATELLITE connection, though it would be nice to have one(a few actually do have them)...
I think the main reason is that a SATELLITE connection cannot have coax splitters upstream as CABLE coax can. Satellite tv does not like these connections, and requires DIRECT coax wiring directly to each receiver, at each tv, not to a 'box of many buttons', as most of us have.
It seems as if manufacturers could easily add these 'additional' coax cabling connections for Satellite, but here's the rub: While each TV is in it's location from the factory, each RECEIVER is not. The receivers are placed by the owner wherever they can find a place for them, and not always necessarily right next to or below the TV itself. Some owners like their receivers to be 'hidden', and some of us keep ours out in the open.
Our living room receiver sits right below our tv on the table, it takes up space : )
Our outside TV's receiver has no room with the tv, so it is mounted on the sidewall of the storage bay down below. The door must be open to change channels : )
Our bedroom TV is mounted/hung from the ceiling, with no place for a receiver. We found a place for it across the doorway on top of the slide room corner. It sits there nicely, but we had to run the coax/hdmi cable across the top of the doorway between the two : )
It all works very well, but, yes, it would be nice if manufacturers could find a way to have these items ran/installed at the factory itself.
For the cable from the Antenna outside:
We've found, as many folks have, that running your own Satellite coax cabling from your Antenna to your internal Receivers is best. While not always easy, it eventually is what most folks must do. Some just run a cable thru a window when they are parked, some have roof top units that run down into the coach from an access port on top, and some, like us, run our own Satellite coax cabling via custom routing. Ours comes from our portable KingTailgater2 antenna, down the rear ladder, thru the radiator access cover, under the chassis, and up into the wet bay via a cable access port. These connect to our 'internal' runs of coax cabling to each receiver(3).
'14 Thor Palazzo 33.3 compact diesel 100k+miles since '14... US, Alaska, Canada...
AND a '14 Gulfstream Amerlite
AND a '07 ForestRIver Rockwood