Bloch established himself on radio, as resident bandleader (and sometimes choral director) for several shows sponsored by Philip Morris, including variety series Johnny Presents (1937-1941), The Philip Morris Playhouse (ca. 1941-1951), and The Milton Berle Show (1947-1948). He also worked the period music series The Gay Nineties Revue (1949-1944) and the game show Quick as a Flash (1944-1951). Bloch's TV work, in addition to the Sullivan stint, included acting as bandleader for Jackie Gleason, including on The Honeymooners (where he occasionally appeared on-camera, as a bandleader).