More than 260 mysteries were solved over the course of the series.
Raymond Burr hosted the first episode, which aired as a special in January 1987. Karl Malden hosted the following two specials before Robert Stack took over.
Though the show is no longer in production, Cosgrove-Meurer Productions has a website for the show, starring popular accounts and still unsolved crimes. There is also a link to an online form viewers and website visitors can use to submit information on such cases.
Although the series was still doing well in the Nielsen ratings, NBC canceled it at the end of the 1996-97 season, citing a desire for television shows designed to attract younger audiences.