I too believe it is the cable company and not the campground that has changed the game. In my home, TimeWarner now requires a digital box on every TV not just those receiving upgraded service. The box is free until Jan 2016, but then who knows...get you hooked then up the charge, just like the street drug industry. It this becomes a problem for campers they may have to add a short splice cable between the TV's and the signal line, this can then be used to insert the campground box if needed. But before you go and change things remember the industry is changing almost daily...WiFi feeds, internet feed, lets see who wins the war of the airways.