
Posted by Don on 11/4/2009, 8:39 pm, in reply to "Re: October Arbitron PPM Ratings For Chicago Released"
I'm amazed at comments on this board everytime the ratings come out. It's like they have no understanding of how data collection, weighting and audience shifts and trends are calculated.
"How could WGN be number one? Me and my friends don't even listen to AM anymore"


