Yes, have a 2014 FR3 30DS. Wynguard system installed, we can only watch 2 separate channels simultaneously. One receiver installed in the shelf above the upright closet by the door feeds both the main and outside TV's, therefore the same TV program is displayed on both TV's. The other receiver is installed below the wall mounted bedroom TV. The front receiver has a RF connection to the remote, so you can control the receiver from anywhere inside or outside the Motorhome. The bedroom receiver is connected to the satellite dish by hijacking the line that supplies the air antenna signal. This negates the need to run a separate line, likely on the roof, back to the bedroom area. The downside is no air antenna TV in the bedroom.
Hope this helps, we're happy with it.
2014 FR3 30DS
2014 CRV Toad