There are as many people, if not more people who knew the WRKY call letters than that knew the station was called Rocky 103. If you were in the market, you would know this instead of asking questions to almost come off as somebody with nothing better to do than attack other people that post on these boards.
I lived in Washington, PA back then. And I could pick up Rocky 103 on my radio. I listened to it from time to time, and even had a preset button for it on my car radio. And I still believe that as long as they call themselves "Rocky 103" every time they refer to themselves on the air, people will think they are "Rocky 103", regardless of what gets whispered on the hour and half-hour for official station ID's.
Then too, they can call themselves Rocky 103 on the air until the DJ's turn blue in the face, but no one is going to hear it unless they use some promotion through other media to inform the public that Rocky 103 is back, so the people can tune their stations to 103.5 to listen. Once you change the format of a station and chase away the old listeners, odds are that the old station pre-set button has been changed.
For example, regardless of what call letters are now being used on 96.9, I changed that preset on my radio to something else when I heard them follow a really great classic rock song with "Tell Me Something Good" by Rufus (featuring Chaka Khan). They are now banished from my radio. The chances of me ever stumbling across 96.9 are slim and none. If they have adjusted their format, cut back on the train wreck segues, and otherwise made attempts to make their station more appealing, I'll never know about it.
Likewise, if the people who own 103.5 (or anyone else, for that matter) thinks that changing the official, legal station ID is some sort of critical and effective method for re-capturing lost listeners, they have another think coming.
It depends on the market and the familiarity the market has with the call letters.
It also depends on whether or not the call letters are used as a station identifier instead of a nickname. WWVA (which is the initials of Wheeling, West Virginia) was what the station was called and referred to for longer than either of us has been alive. What is important is the name by which a station is known. If a station is known by it's call letters, as many are, then those call letters are important. If a station is mostly known by its nickname, then the call letters aren't very important.
Mark my words, take whatever the ratings are right now for 103.5 in Steubenville and if they go with using the WRKY calls in that market, see what their ratings end up being. I'm telling you because I used to live there the ratings will increase.
Mark my words. If they use the calls WRKZ (which is what you put in the title of this thread), or any random sequence of four letters that begin with "W", but they call the station "Rocky 103" whenever they refer to it, then their ratings will increase if they also make the necessary format changes and they promote it well.
It boils down to several things that they need to do in order to increase ratings:
* Improve the product by changing the format, as you have suggested.
* Promote the new sound of the station using other advertising media to get listeners to tune them in and sample them.
* Adopt and use the nickname "Rocky 103".
* Change the call letters.
Of those four, the first three are critical. If they don't do any of the first three, they'll fail.
Of those four, the last one is trivial. If they do the first three and don't do the fourth, they'll succeed.