Unsolved Mysteries is an American television program, hosted by
Robert Stack from 1987 to 2002 and later by
Dennis Farina starting in 2008. The show was broadcast first as specials in 1987, then as a regular series on
NBC (1988–1997),
CBS (1997–1999),
Lifetime (2001–2002) and
Spike (2008–2010). Lifetime once again airs the revived version of the series, but only in reruns.