According to the annual Advertising Age survey, NBC's Sunday Night Football has the highest thirty second advertising spot cost at $434,792. Last year's champion, Grey's Anatomy took quite a haircut this year, according to the survey, down to $326,685 per 30 second spot. That's more than a $100,000 per spot down from last year's survey, and last year there was a steep Grey's Anatomy premium versus Desperate Housewives of over $100,000. This year, Grey's is only about $8,000 more expensive than Housewives' $318,552.
CBS's top show is CSI, at $262,600. Fox's top show for the fall is Fringe at $343,000, but keep in mind Fringe is airing all season with half the amount of normal commercial spots. House (which airs with the full slate of advertising) is next highest for Fox at $260,179.
CW's highest-priced show is America's Next Top Model at $103,714 - well ahead of anything else on the CW (One Tree Hill is next highest at $67,902 and Gossip Girl pulls $62,139 according to the survey). The Game on Friday nights has the lowest price of anything this fall according to the survey at $29,583 - that's even cheaper than the 8pm Saturday block of Crimetime Saturday reruns on CBS at $32,600.
You can download the full list here (PDF file).
For comparison, here are the numbers from the same Ad Age survey last year.
Update: I just posted a MAGNA report that has some interesting observations about Fringe ad data here.