Lifestyle entertainment portal Food Network looks to be about more than cooking and to attract a broader primetime audience by promoting its bad boy baking show, Ace of Cakes, in a multichannel campaign begun Jan. 15 that features interactive banners and online videos. The show stars Duff, a sunglasses-wearing biker and former graffiti artist who bakes and builds elaborate, creative cakes. Its second season premiered Jan. 18. Interactive agency Agency.com handled the online elements of the campaign, targeted at foodies and cultural creatives ages 18-49. It's a different kind of show, said Lana Chan, account manager at Agency.com, New York. We wanted to perpetuate that with our creative. Print design elements, used in offline pushes and created by agencies MediaStorm and Filter, were adapted for online expandable banners and the show's Web site at http://www.aceofcakestv.com