If your campground has a cable TV hookup, it's usually somewhere on the power post. I have enough cable to go from the trailer connection and extend about 5 ft beyond either end of the RV.
Usually only cable tv techs have to worry about signal losses. Even if you have to use 100' of it the loss difference between rg-6 and rg-59 is negligible. (4.14 db per 100' vs. 6.00 for '59) @ 850 mhz.