Kovacs's first paid entertainment work was during 1941 as an announcer for Trenton's radio station WTTM. He spent the next nine years with WTTM, becoming the station's director of special events; in this job he did things like trying to see what it was like to be run over by a train (leaving the tracks at the last minute) and broadcasting from the cockpit of a plane for which he took flying lessons. Kovacs was also involved with local theater; a local newspaper published a photograph of him and the news that he was doing some directing for the Trenton Players Guild in early 1941. "The Trentonian", a local weekly newspaper, offered Kovacs a column in June 1945; he named it "Kovacs Unlimited".