It seems that sportstalk is the new big thing for radio as both CBS radio sports (now on 610/94.1 WIP with hourly headlines when in Jan '13 will carry 24/7 on 610) and NBC radio sports headlines on AM 1490 near Trenton, no full time affiliates yet announced in Philly/Wilmington/Trenton areas) are both now entering the sportstalk foray. Besides these two, we've already got, ESPN radio (97.3 in NJ, 97.5), Fox Sports Radio on Wilmington's AM 1290 WWTX which also carries Premiere radio sports talk programming too. So that's about 5 sports radio networks (they're probably others I don't know of since they aren't broadcasting in the Tri-State area - DialGlobal Radio also carries many national games that both Philly and Wilmington stations broadcast like last night San Francisco vs Seattle NFL game on 610 WIP, 95.3 NJ, and 1150 WDEL). Besides the national networks we have the totally live and local sports talk on 94.1 and some local on 97.5 other than I believe in AM drive when they carry Mike and Mike from ESPN.
My point is, sports talk seems to be the next big thing in spoken word formats for radio, be it AM or FM. My guess is, many folks are tired of "political talk" radio (I definitely am), be they liberal or conservative. It really is the same thing day in and day out. Many people, both men and women do follow sports and probably will get into sport talk radio. I believe if marketed in the right way, Sports Talk Radio could really be the next big spoken word format for radio. An example: I sing in my local United Methodist Church choir and last night at the rehearsal, I listened to some of the Tigers / Yankee's game on 950 as I drove to the rehearsal. Anyhow, during the rehearsal, a number of women, plus men asked what what the score of the game. The female organist/pianist picked up her I-phone and immediately told us the game had ended and the final score was 8-1 Tigers are going to the World Series. Apparently during the rehearsal when she wasn't playing, she was following the game on her I-phone. There is a market to attract both male and females listeners to sport talk radio. Apparently both CBS radio and NBC radio ( I believe via Dial Global the old Westwood One) see the potential in this format.
Getting back to the original point of this thread, YES, eventually CBS radio will move KYW to FM with an AM simulcast. They won't now as their 1060 AM is #1 in Philly, but it will happen some day. Apparently folks WILL tune to AM to get that traffic and weather that makes their commute a bit better.