First developed for radio in 1934 for the New England region, the show was an immediate hit and was then done on from 1935-37. Republic Pictures began the Dick Tracy cliffhangers in the movies, which also helped kids get excited about following his adventures on radio. Fifteen minute serials were produced for a full five nights a week in 1938-'39. In 1939, it went to a half-hour, usually playing on Saturdays. With WWII developing, Dick Tracy was put on hold. After a few years, the show again took to the air, and continued from 1943 through '48, first developed as a fifteen minute serial, and then expanding to a half hour in the mid 1940s. Dick Tracy was featured in a series of novels and "Little Big Books" at the time, as well as the Republic cliffhangers and movies.
Chester Gould's newspaper strip featured singular thugs and inventive plots all drawn in a flat, modern-looking cartoon. The strip was heavy on scientific crime detection, using the lab to sift through clues, and ultra-modern inventive devices such as Dick Tracy's two-way wrist radio (1946) that were wild then, and are very big in commercials right now as pager/cell phones (almost wristwatch size.)