Re: CSI Ratings versus Grey's Anatomy
Ratings DO equal totalt number of viewers. However, only househoulds with a nielsen box on their TV can be measured in the results. They represent a percentage, mostly, and they are fairly accurate.
The ONLY reason networks care about ratings is because advertisers care about them. If a show gets more ratings the network can charge more for commercials while the show is airing. Also, advertisers love the 18-49 year old demographic. Therefore, winning that demographic in the ratings can put you "ahead" in the ratings war even if you don't have more total viewers.
Basically, if you have tons of viewers but only kids and geezers are watching then no one cares except the manufacturers of legos and geritol. That's why you see so many commercials for old-people-pills during The Price is Right. The ratings show that more elderly people watch, so advertisers of products that would appeal to older people pay big bucks to advertise in that time slot.
Long story made short: Networks want lots of middle-aged people to watch their shows so that they can make lots of money.
On another note, I personally believe that the poor quality of the last few episodes of season 6 (excluding Rashomama, which was god in prime time) turned people off the show. People saw that the show seemed to be on a downward spiral. And, IMO they were right to leave. I liked 4 of the first 6 episodes of season 6 (more or less), but I've only liked MAYBE 2 this season, and Burnout was only impressive because of Alan Tudyk, who is done with the show. So, there ya go.
It's all personal preference I guess, but I have found season 7 to be extremely dull and predictable. There hasn't been one good twist in an episode yet. The mini crime scene was intriguing, but that only got about 5 seconds of screentime. In every other ep I have called the ending at least by the halfway point. Furthermore, everyone always works with the same people. Apparently we have regressed to season 5. Where's the variety? That is what helped make season 6 good IMO.