After MGM dropped Iwerks, they hired Harman and Ising away from Leon Schlesinger and Warner Bros and appointed them heads of the studio. They began producing "Bosko" and "Happy Harmonies" cartoons which were emulative of Disney's "Silly Symphonies". However they failed to make a success in the theaters, and in 1937 the "Bosko" and "Happy Harmonies" series were discontinued and MGM replaced Harman and Ising with Fred Quimby. After Quimby took over, he kept a number of Harman and Ising's staff and scouted other animation studios for talent (including Warner director Friz Freleng for a short period of time). He created an animated adaptation of the comic book series "The Katzenjammer Kids" which he re-titled "The Captain & The Kids". "The Captain & The Kids" series was unsuccessful. In 1939, however, Quimby gained success after rehiring Harman & Ising.