I would have to do research, but a lot of these “second CHR’s” hit the airwaves during a very large boom in CHR that ran from around 2009-2014 or so. The flips seemed to peak in 2010 and 2011. Stations were flipping to CHR left and right because the format was doing extremely well. In many markets, if iHeart didn’t have a CHR, they flipped a station to CHR. CBS also leaned heavily in to CHR, but most never failed to gain much traction and were gone years ago - KMVQ in San Francisco being a blaring exception.
What I think we’re seeing is the unwinding of the “second CHR” as mentioned above. CBS (and later Entercom/Audacy’s CHR’s they got from them) was fortunate to have clear voids for most of their ill fated CHR startups to flip to, or something they could try. What we’re seeing now in many cases is you may have a struggling CHR, but there aren’t any viable alternative formats - so we’re seeing the operators be patient with the format, try tweaking to a more hot AC sound, moving to a more rhythmic gold direction, etc. Do you stick with the CHR, which may have done decently in the past, and give the format some more time vs. doing an expensive flip and starting from scratch with no guarantee of any more success?
That being said, looking at the recent numbers from this week, CHR isn’t improving.