One of my favorite moments in all of Psych has to be in season 2 episode 2 when they are solving the case of the dead paleontologist and they find the holes he dug and Shawn references the movie Holes, but forgets the name of the movie.  Then, Gus keeps trying to guess the name of the movie but doesn’t get it right.  That is hilarious because, Dule Hill, the guy who plays Gus also played Sam in Holes.