KYW knocked B out of the top spot, B took a bit of a plunge from the Holiday book. MMR still on top of the rock format, BEN falling into oblivion with YSP not too far above them, 97.5 steady but low. Other than the KYW surge (snow storms?) not many surprises for January.
http://www.radio-info.com/markets/philadelphia
http://www.radio-info.com/markets/philadelphia