Wasn't the LS-FM to Z95 switch in January of '86? I seem to remember it being very close to the Bears SB20 win. My nerdy 13 year old self was airchecking a bunch on my Yorx triple (yes, triple!) cassette boombox at the time. Funny that I didn't know what "airchecking" was at the time. I cringe when I think about the tapes that I would record over, and/or remove commercials and station liners/jingles!