Garrett, whose new sitcom, "`Til Death," will be on Fox (owned by News Corp.) in the fall, did a quick comedy routine before thousands of advertisers gathered to see the network's schedule announcement Thursday.
Noting the presence of Paula Abdul, who has seemed slightly unhinged this season on "American Idol," Garrett said: "Bellevue (Hospital Center) has a shuttle bus."
"Nice dress," he said of Abdul, a judge on the talent competition show, who wore a shiny outfit. "Maybe it's time to get back in the lamp."
To increasing groans from the audience, the 46-year-old actor then made a profane reference to "Idol" host Ryan Seacrest's sex life.
"Ooh, it's going to be a long night," said Fox Entertainment President Peter Liguori as Garrett walked off the stage.