Yeah local cable connections can be iffy. When we first got our rig, I first blamed the Furrion TV's, thinking it was just an inferior brand. Then we got a ROKU stick and teamed it with our Verizon Jetpack WiFi hotspot and Wow, what a great picture. So the Furrion TV's (still looking for the Fur) are not Samsungs or LG's but are in fact serviceable. Local cable is not so hot.
Here in Macintosh County, GA there is a legacy Baby Bell Telco that has a monopoly on cable and internet unless you have a satellite dish.
I will say that the local CG WiFi is really quite good; they just ask that you do not stream.
We are at Inland Harbor RV park in Darien, GA, right off Interstate 95. Well run, neat, family operated and affordable. Highly recommended if you are doing the east coast corridor.
Angus