Currently there are lots of discussion on LEDs and al. How about this ?
I would like to suggest that all RV manufacturers move to adding a standard roof mount Wi-Fi antenna with a connector inside (looks like the SMA style is pretty common)
One could then add a little repeater, or another wireless card (like the Alpha USB) to connect their single computer for example.
I laugh when I see the POTS (plain old telephone) jack on the side of my trailer, I have never see anyone (maybe seasonal campers...) who use a regular phone in their RV.
We would have TV, AM/FM and Wi-Fi.
C'mon FR, get with the program, lead the way
Like it or not, Wi-Fi is here for a while.