I remember specifically tuning in at night to WCFL on their last day as a Top 40 station. WLS, also Top 40, of course, was the winner as they stayed in the format for ... I don't know how long. The DJ on WCFL was perturbed at something that one of the WLS DJ's had said, on-air, about WCFL dropping the Top 40 format. It might have been the Morning Drive guy, or whomever was on opposite him on WLS. The WCFL DJ mentioned something about it, as I fuzzily recall, and then said "Ah, stick it in your ear (name of WLS DJ)". Either right then or later, at the tail end of his shift, he talked about going back home , "going back to where I started from". He did this as way to say goodbye, and introduce the, then, current hit "Get Right Back To Where We Started From" by Maxine Nightingale which was a big hit in the range of February through April, 1976.