So the show "Supernatural" is kind of like Psych in the sense that the leads goof off a lot and try to solve murders and other mysteries. However, "Supernatural" is a darker, and more... well... supernatural show. Also one of the leads is psychic.
The Mentalist is like the grown up drama version of Psych
Suits
Perception
Leverage
The mentalist does really resemble Psych
Sherlock BBC. Except it's 100000 times better. And it has Benedict Cumberbatch.
Any?