Dell Comics was an extension of Dell Publishing that began publishing comics in 1929. It grew into a major success with the publication of licensed properties, most notably by featuring characters from cartoons made popular by Walt Disney, Warner Brothers and Metro-Goldwyn-Mayer. The Dell series, however, would only run for another two issues before Western Publishing decided that they wanted to develop and publish some of their shared comic titles on their own, under their new Gold Key imprint. This included The Twilight Zone.