I just got back from Camping World and had this installed. I don't have pictures yet, but thanks to everyones help, I had it installed in the hallway next to the shower. The digital Magic box was installed on the wall behind the shower. The installer was able to use the access panel for the water to the shower for accessing wires and mounted the box about a foot above the panel. This is hidden when the sliding door to the toilet/shower is closed. I can easily see the TV in the lower part of the RV and also if we ever get one in the bedroom.
Operation is VERY easy. Actually works faster than my parents King Dome. If you can't see the TV very well, just turn up the volume. You can adjust by the tone the cable box puts out while locking onto a satellite.
The only problem I had was with the crowd in Camping World before 4th July weekend. But that is another thread.