Rating the Ratings: Criminal Minds finally took a significant ratings downturn in the 2012-13 season, ending an amazing four year run in which its raw numbers went -1%, -0%, -4% and -2%. The premiere and finale were each down over 20% year-to-year, and the show was at its relative strongest right in the middle; it didn't seem to drop at all during its episodes while lead-in Survivor was off the air. As with NCIS, this grade will sort of be a "victim of its own success" situation. Dropping more than the league average is relatively new for this show. Grade: C.
Here's the now updated War of 18-49 post for Criminal Minds.