Last week's premiere of "American Idol" was the most-watched in its six-season history (and the best television debut ever for the Fox network), with an estimated 37.3 million viewers, according to MSNBC. That's an increase of 5% over season five's premiere, with 35.5 million viewers (and 376% more than season one's premiere with 9.9 million viewers).
This season, a 30-second commercial during "American Idol" will cost advertisers $600,000, making it the highest priced regular season commercial. "Desperate Housewives" comes in second at $394,000 per commercial.
"American Idol" is the No. 1 show for adults ages 18-49, a title it's held on to for the past three seasons.