WKQI 95.5 FM in Detroit Michigan aired Casey's Countdown from April 4, 1993 until the premiere of Casey's Hot 20 in November 1994. WIOG 102.5 in Saginaw, Michigan aired the show sometime in late 1992 to the mid 90s. KBIG in Los Angeles was one of the early affiliates,
WIOG 102.5 in Saginaw, Michigan aired the show sometime in late 1992 to the mid 90s.
A CHR station airing an AC countdown? Strange.
Not exactly...turns out WIOG was flirting with a Hot AC orientation as early as May 1992; they're cited in the 5/29/92 issue of R&R as moving their format in an Adult direction. (One of the earliest prime examples of this, following that, is their being one of the top supporters of Peter Cetera's "Restless Heart", which peaked at #26 CHR but hit the top on AC; he made it as high as #2 on their weekly playlists, bested by only one station that I can see at any point that gave him time at #1.) [ETA: Turns out that Peter did reach the top of their playlist after all for a week, in an issue I came up to a week or two after typing this.]
I'm curious to see when R&R takes them off the CHR panel - at the latest, it'd be 4/22/94 when they debuted their Hot AC section, but there's a chance it comes sooner, as WIOG had a CHR rival that was truly a CHR in the form of WTCF. WTCF isn't panel-listed yet at this point in 1992, but that'll be coming soon. (WTCF, incidentally, was cited as an AT40 affiliate upon their 1998 return, but they went rogue with their format in the middle of 1999. No idea if WTCF would have been a Casey's Top 40 affiliate prior to the return, though it'd make sense.)
One last thing: WIOG being a Casey's Countdown affiliate puts them in the club of stations who were carrying multiple hosts in some form - assuming record-keeping was fully accurate; they're read as an AT40 affiliate on 3/5/1994. Carrying one AC show and one CHR show would be a strange concept, but one could say this was just how it was for Hot AC stations before their format was fully-designated and recognized.