Greenboy....
I'm a native and resident of McHenry county, but I can't say that I've tuned in very often. I know they were running the health network stuff for a while, but I'm unclear if that's what its supposed to be now. Its such a mish-mash that I honestly can't figure out what the hell it is.
When I was a teenager in the 60s, WMCW was typical small town local radio. A little something for everybody. They even had a top-40 show on Saturdays and distributed a little printed survey. The primary signal had a range of about fifteen miles....meaning it was competitive in Woodstock, Belvedere, Marengo, and a few other places in Illinois. Walworth and Darien, and Delavan in Wisconsin.
I know about the hymn from catching it at sign-off. Later, nighttime was added, but range was essentially limited to just the COL, Harvard.
The owner, Esther Blodget, sold it and passed on (perhaps it was her estate that sold it). If I recall correctly, the next owners...whom I believe took over in the mid or late 70s...made a game effort to maintain their local flavor. The format gravitated toward what I would call "middle of the road/oldies". Eventually Kovas wound up with it and basically turned it into its current status as a non-entity.
I may be off on some of the facts or missing something, but I think that's essentially the story and the best I can do.