Across which formats did WXRK K-Rock change its identity?

Switched from its iconic active rock "K-Rock" identity to a Top 40 (CHR) format in 2004, rebranding as "92.3 Now." Then, in 2007, it flipped to a hot talk format as "Free FM," which failed to gain traction, so by 2009 it reverted to a rock-leaning mainstream rock format before being sold and eventually going to alternative rock as "Alt 92.3" in 2012. Finally, after a stint as "92.3 AMP Radio" (Top 40 again), it became an all-sports station in 2017.

Started out as a classic rock station back in the early 80s, but then it went through so many shifts. It became active rock as K-Rock, then tried a Top 40 phase as 92.3 Now, a hot talk experiment as Free FM, a brief return to rock, and finally settled on alternative as Alt 92.3 before going to Top 40 again as AMP Radio. I guess you could pick any of those depending on what era you care about.

K-Rock went through more format changes than most stations could handle in a lifetime. It started as a classic rock outlet, then shifted to active rock under the K-Rock banner, and later became the short-lived "92.3 Now" as a Top 40. After that, it tried hot talk as "Free FM" and even dabbled in a mix of rock and alternative before flipping to "Alt 92.3." Wait, I almost forgot the last one-it ended up as "92.3 AMP Radio" for a while, a Top 40 again. Crazy ride, right?