Hoping to score a little eggstra publicity, CBS has signed a deal withDeerfield, IL-based EggFusion that will put the CBS eye logo and a blurb for its new shows on the shells of eggs sold in grocery stores.EggFusion uses lasers to print sell-by dates and other "On-EggMessaging" on the eggs. Those for CBS will carry such ads as "CSI: Crack the Case on CBS" and "The Class, New Grade-A CBS Comedy." Theyare expected to begin showing up in time for the September launch ofthe new season.