In 1949, when the postwar theater euphoria died down, Millowitsch focused on his television career and in 1949 his first television film (Gesucht wird Majora, directed by Hermann Pfeiffer) was released.
Throughout the 1970s, Millowitsch stuck to the folk theater, and it wasn't until the end of the 1980s that he also turned back to television and took the title role in a detective series as Kommissar Klefisch, whom he played until 1996.