Many manufacturer's of RV's are installing LED lighting in their units now. They buy the cheapest ones they can find to keep costs down.
They have no idea about how they can interfere with television signals in the RV. If they actually cared they would use quad shielded RG6 coaxial in the RV and make sure the brand of LEDs used have been tested with their televisions being used and all lighting turned on before shipping.
That is one of the very reasons I have no urge to trade my current Class C MH. My double-amplified television set has very excellent range.
I won't be replacing any bulbs with LED until I absolutely have too. I will not purchase any newer motor-homes that have televisions, switch-boxes built-in because it is next to impossible to get at connections on the back on the components. They get loose from vibrations from travelling.
Removing screws from panels to have access for checking is futile since the woodwork is fake and screw-threading will fail after a few times of removing the panels.