Yes, there possibly is no campground hook-up given the age of the RV, just like many RV's still don't have a connection for an external portable SAT dish.
Our old El Dorado Class C only had the basic batwing and coax outputs where the TV was and where optional TV's could go...plus it had no box of many buttons (BOMB) for a VCR or anything else.
But it is very easy to add. Just a simple coax cable from Wal*Mart or similar store can carry the signal to the needed location -possibly a splitter/combiner where the batwing enters the RV (just be sure NOT to run the cable signal through the signal amp for the batwing). Campgrounds usually put the cable TV near the post, so if you put the end of the wire near the shore power cord, it will be easy to use...with some extra cable left on the end, you won't even have to carry a separate cable to make the final connection.
Kim and Steve, Mustang LCDR (Ret), '07 Damon Outlaw #1193
I have seen gross intolerance shown in support of tolerance, Samuel Coleridge
WE LOVE OUR OUTLAW RV