Comedy Central will air a 90-minute year-end special next month called “Last Laugh ’04,” the channel announced Monday. Comedians Norm Macdonald, Greg Giraldo, Bill Engvall, Kathy Griffin, DL Hughley and Colin Quinn will host the look at the year’s funniest events and news stories. The special, which will air Sunday, Dec. 12, was taped at the Orpheum Theatre in Los Angeles.