The Secret World of Alex Mack is an
American television series that ran on
Nickelodeon from October 8, 1994 to January 15, 1998, replacing
Clarissa Explains It All on the
SNICK line-up.
It also aired on
YTV in Canada and
NHK in Japan, and was a popular staple in the children's weekday line-up for much of the mid-to-late 1990s on the
Australian Broadcasting Corporation. Repeats of the series aired in 2003 on
The N, but it was soon replaced there. The series was produced by Thomas Lynch and John Lynch of Lynch Entertainment, produced by
RHI Entertainment,
Hallmark Entertainment and Nickelodeon Productions and was co-created by Tom Lynch and Ken Lipman. For home video releases, it was released under the
Hallmark Home Entertainment label, making it the first
Nickelodeon show not to be released with
Paramount Home Video or
Sony Wonder.