Season 0 of Unsolved Mysteries premiered on January 20, 1987.

Season 1 of Unsolved Mysteries premiered on October 5, 1988.

Season 2 of Unsolved Mysteries premiered on September 20, 1989.

Season 3 of Unsolved Mysteries premiered on September 19, 1990.

Season 4 of Unsolved Mysteries premiered on September 18, 1991.

Season 5 of Unsolved Mysteries premiered on September 16, 1992.

Season 6 of Unsolved Mysteries premiered on September 22, 1993.

Season 7 of Unsolved Mysteries premiered on September 25, 1994.

Season 8 of Unsolved Mysteries premiered on October 20, 1995.

Season 9 of Unsolved Mysteries premiered on September 20, 1996.

Season 10 of Unsolved Mysteries premiered on November 13, 1997.

Season 11 of Unsolved Mysteries premiered on April 2, 1999.

Season 12 of Unsolved Mysteries premiered on July 2, 2001.

Season 13 of Unsolved Mysteries premiered on June 10, 2002.

Season 14 of Unsolved Mysteries premiered on October 13, 2008.