If you're sick of grim, self-consciously bleak crime shows, Psych is the perfect antidote! It's an unashamedly comedic mystery with just enough splashes of reality to keep it grounded.
Shawn and Gus are best friends who genuinely adore each other underneath the constant teasing and banter, and their friendship----along with Shawn's complex but increasingly stable relationship with his dad---give the show its subtle but strong heart. You have to be in the mood to laugh at the show's gleefully goofy silliness, but there's also some surprisingly smart, sharp wit here as well.
Season 2 is my favorite of the whole series (and one of my favorite seasons of any TV show ever!), but this third season is a close runner up. Highlights include The Greatest Adventure in the History of Basic Cable, a 'treasure hunt' episode which features Shawn's amusingly unreliable Uncle Jack; There Might Be Blood, where we get a little much-needed focus on the chief by meeting her sister, fabulously played by Jane Lynch; Lassie Did a Bad, Bad Thing (I'm a sucker for whenever Shawn and Lassie put aside their usual animosity to help each other out!); Any Given Friday Night at 10pm/ 9pm Central (if you like football---or maybe even more if you don't---you'll enjoy this one!); and Tuesday the 17th, which, as others have pointed out, is a terrific takeoff of Friday the 13th---funny, clever, engaging, action packed and at points even genuinely, effectively creepy. That last one alone is worth the currently very reasonable price of this DVD!
You can watch this infectiously energetic, highly amusing show over and over without tiring of it, and it's almost guaranteed to boost your mood. Plus, some of the mysteries are generally engaging, which is more than I can say for many of today's self-serious crime dramas! Enjoy!