If you can't get a signal, or much of a signal, you might have the same issue I did:
Yep, hit with the router bit. If FR had checked the line at final QA, they would have found an open.
That all said, I've never hooked the shore line to a park's pedestal. When we are on the road, the TV is the last thing we are looking at. Currently, there is no TV in our new unit:
It started out looking like this:
Complete with a 32" TV....