Season 4 aired between 07 Aug 2009 and 10 Mar 2010, 16 episodes.
Episodes
E01
Extradition: British Columbia
07 Aug 2009
E02
He Dead
14 Aug 2009
E03
High Noon-ish
21 Aug 2009
E04
The Devil's in the Details... And in the Upstairs Bedroom
28 Aug 2009
E05
Shawn Gets the Yips
11 Sep 2009
E06
Bollywood Homicide
18 Sep 2009
E07
High Top Fade Out
25 Sep 2009
E08
Let's Get Hairy
09 Oct 2009
E09
Shawn Takes a Shot in the Dark
16 Oct 2009
E10
You Can't Handle This Episode
27 Jan 2010
E11
Thrill Seekers and Hell-Raisers
03 Feb 2010
E12
A Very Juliet Episode
10 Feb 2010
E13
Death is in the Air
17 Feb 2010
E14
Think Tank
24 Feb 2010
E15
The Head, the Tail, the Whole Damn Episode
03 Mar 2010
E16
Mr. Yin Presents...
10 Mar 2010