The Secret World of Alex Mack is an American television Show that ran on Nickelodeon from October 8, 1994 Substituting Clarissa Explains It All on the SNICK Line up. It has been a staple at the children's weekday line-up for much of those mid-to-late 1990s on the Australian Broadcasting Corporation, and also aired in Japan. Repeats of the string aired on The N, however it was replaced . The collection was created by Thomas Lynch and John Lynch of Lynch Entertainment, made by Hallmark Entertainment, RHI Entertainment and Nickelodeon Productions and has been co-created by Ken Lipman and Tom Lynch. For home video releases, then it was published under the Hallmark entertainment label, making it the first Nickelodeon show not to be published Sony Wonder or even from Paramount Home Video.