I love the original series on USA.
In Plain Sight: US Marshals in charge of folks in witness protection in Albuquerque. (Bonus: Mary is bad ass and Marshall is cute and hilarious) Burn Notice: spies doing spy stuff in Miami. (Bonus: Michael Weston is HAWT) Royal Pains: a concierge doctor in the Hamptons. (Bonus: Hank is adorable) White Collar: a professional thief released from jail and working with the FBI. (Bonus: Neal is HAWT) Psych: a pair of private detectives using fake esp to solve cases before the local police do. (Bonus: Shawn is adorable and funny, as is Gus, who is also a West Wing alum)
If you aren't watching at least one of these shows, we probably can't be friends. Just kidding. Sort of. Here is the best (worst?) part. These are not 22 episode seasons. They only require a few months dedication. And many of them are summer shows so they won't interfere with your basic cable prime time favorites that run from the fall through the spring.