There is nothing like a good mystery to get the imagination going.
Unsolved Mysteries (1987-2010) premiered in 1987 and was on the air for 23 years on a number of networks until its formal cancellation in 2010. Hosted for most of the series by the late actor Robert Stack, the show was setup in a documentary style. Each episode told the story of yet to be solved mysteries. Everything from murders and missing persons cases to unexplained paranormal phenomenon was profiled on the show.
Unsolved Mysteries is one of those shows that can only be defined as addictive. You cannot watch just one. The more you watch, the more you want to watch. You want to be able to figure out the mystery and solve the case.
Do I recommend it? Yes.