As recently as the early to mid '90s, KMOX showed up in the Dickson County arbs!
I get these little reports from Arbitron showing the stations in the area that have met at least 1% criteria in their market or county. I've seen KMOX showing up in Dickson County too, also in the past, I recall seeing WGN, WLS, WJR, etc. showing up in different counties as well. Makes me wonder, are these out of town Class A's getting an audience "still" these days? If it was 1975, I know WLS-AM should have showed up in the Nashville book, in the early to mid 70's. Even though WLAC did Top 40, their signal was, and still is directional, and up here in Northern Sumner County, it faded some, and still does. Couldn't pick up WMAK outside Davidson County at night.
WLS didn't fade too bad back then, and I still hear John Landecker doing his "Boogie Checks" in my head. John Rook was a great programmer that took chances with WABC, WCFL & WLS, in the late 60's and 70's. Heck back before 880 AM,WMDB signed on here in Nashville in 1983, and Lebanon's 900 AM was only 500 watts during the day, I could hear WLS during the day, and it got stronger 2 hours before sunset, which the FCC calls "Critical Hours".
Not knocking the Tennessee Stations, but back then, it just seem like the big (out of town) Class "A", 50 KW stations took chances and WLS-AM is a good example. You know, they are still around today; only the music is on their sister FM.
My opinion is they take that talk off WLS-AM and let WLS-AM simulcast with their sister FM 24/7. Man, talking about getting an audience, that would boost AM, and I believe you would have an audience of 18-80. Still let the audio stream as well.
Citadel would make tons of money doing this, what do you think?