[DocP]

Since your Cougar is a 2019, you have the new "KeyTV Plug and Play" system installed. My new 2019 Cougar 34TSB has the KeyTV system, and there is no antenna booster on this system (it isn't needed). All that you need to do is hook up the cable (or satellite) on the outside box on the camper and all of the TV's mysteriously "know" what type of signal it is without having a power button. I know that on mine, there is a green light at the entrance box, but no button to turn it on or off.

I have attached some files containing more information on KeyTV. So far, it works well on my 2019 Cougar.