I'd go with another CM7777 (classic version) preamp and not worry about WATC, unless that's a must have channel. I say that because the preamp may cause freeze ups on that station.
I use a CM7777 preamp to pick up the Cincinnati channels which are to the south while my home is just over 3 miles from the Dayton, Ohio tv towers (you can see them out my back door) which are to the west. The Cincinnati channels come in great with no signal overload at all, but the Dayton channels will occasionally freeze up for a few seconds.
I'm guessing only WATC will have problems with overload due to a CM7777 preamp.