Kovacs used classical music as background for silent skits or abstract visual routines, including "Concerto for Orchestra", by Béla Bartók; music from the opera "The Love of Three Oranges", by Sergei Prokofiev; the finale of Igor Stravinsky's suite "The Firebird"; and Richard Strauss' "Till Eulenspiegel's Merry Pranks".
He also served as host on a jazz album to benefit the American Cancer Society in 1957, Listening to Jazz with Ernie Kovacs.