Hang the F on. While American Idol’s ratings may be dropping off this season, the numbers the show pulls in are still leaps and bounds ahead of the competition, except for maybe Dancing With the Stars and CSI. The Tuesday-Wednesday shows still pull in some 21-plus million viewers (down from last year’s average 30m) and, in the target demographic of 18-49-year-olds, Nielsen says Idol snags 13-14 million people. So why should anybody be surprised the show was renewed for next year? The producers’ current contract with Fox allows for the show to be broadcast through at least 2011; expect it to be.