http://adage.com/article?article_id=146495#thurs
http://headlineplanet.com/home/2009...vision-ad-rates-revealed-greys-anatomy-leads/
As you can see, CSI dropped from $198K in 2009 to $147K in 2010. The CSI spinoffs did improve the ad rates for their respective timeslots this fall, but their overall numbers also declined. I also tried to get you a link to the 2008 numbers, but Advertising Age wants me to register to get the information.
Now, being totally honest, The Good Wife's ad rates were down this fall too, but I'm willing to bet that it has increased a little since the start of the season because Parenthood, which did give it a little competition last spring as opposed to that Leno fiasco last fall, has totally tanked this season. Therefore, some of those advertisers may now be opting for The Good Wife.
Another thing that you have to keep in mind while looking at a show's ratings is total viewers and the 18-49 demos are not the be-all-end-all for ad rates. There are additional demo numbers that are even more important for specific advertisers. NBC makes its bread and butter off the 18-34 male viewer, while The CW is still around because the advertisers like its 18-34 female demos. Another good example of a show that gets constantly skewered by armchair ratings analysts is 60 Minutes. The show averages 10-12 million viewers a week, but its 18-49 demo may hover around 1.5 some weeks. Talk about old-skewing, right? However, its "high income" or "affluent" demos are off the charts. It's the show that is watched the most by CEO's, CFO's, and executives who sign 80% of America's paychecks. That's the reason why CBS doesn't preempt the show to cut down on the effects of the sports overruns that have been screwing CSI: Miami. 60 Minutes' average 30-second spot for your more typical advertisers is not that high on the chart that I linked, but companies like TD Ameritrade, Merrill Lynch, FedEx, Mercedes, and Travelocity are willing to pay high premiums to appeal to these viewers. This is one area where The Good Wife excels over the CSI's. I see many of the same ads during it that I see during 60 Minutes and The Amazing Race, another of CBS' more popular programs with affluent viewers.
Look, as I said before, I still love all of the CSI's. That's why I'm frequenting this board. However, I think we're past the point where we will see any of their audiences significantly grow any longer. If CSI: Miami is going to continue, it will have to substantially improve over the numbers that both The Unit and Cold Case generated over the past two seasons once the NFL completes this season.