It's a Mystery is a networked Children's ITV programme which ran for five series from 12 September 1996 to 9 May 2002. It was produced by The Media Merchants Television Company Ltd for Meridian Broadcasting Ltd. In Series five, the show was retitled as Mystery and featured different presenters. It was a magazine show featuring unusual stories including about UFOs, ghosts and other difficult to explain happenings, some of which were solved while others remained unexplained.

It had three presenters for the first four series the best known was probably Neil Buchanan who presented regular arts show Art Attack between 1990 and 2007, Sophie Aldred did the first series only and Gail Porter (1997–1999) from magazine show How 2 along with Tristan Bancks, they were replaced in 2000 by Ben Jones and Shelley Blond. Steve Wilson and Shiarra Juthan presented the 2002 last series