Amazing Race 15 (8pm, CBS) - The teams fly to the Netherlands to race amongst clogs, windmills, and tulips. 

Desperate Housewives (9pm, ABC) - Bree is starting to really fall for Susan's slick ex-husband Karl, while Gaby gets her daughter Juanita expelled from school. 

Bored to Death (9:30pm, HBO) - "Bored to Death" has become a top destination for cool guest cameos. So far they've had Kristin Wiig, Jim Jarmusch, Parker Posey, and Patton Oswalt. The wonderful Oliver Platt (right) shows up again tonight as GQ magazine editor and nemesis of George (Ted Danson). John Hodgman is great as a book reviewer who trashed Jonathan's first novel, and Bebe Neuwirth appears again as Jonathan's book editor. (Look for NPR's Sarah Vowell next week.) Meanwhile, Ray (Zach Galifianakis, who continues to steal all his scenes) is alarmed when a lesbian couple (Samantha Bee shows up in this story line tonight too) to whom he has been donating sperm disappears.

Mad Men (10pm, AMC) - After tonight, we're sadly only one episode away from the finale. Will tonight's episode (or even the finale) top last week's, in which Don was forced to come clean to Betty about his secret past? We do know that tonight Peggy has more proof that her taste in men is flat-out atrocious, and Pete has to make a major decision about his career.

Sex Rehab with Dr. Drew (10pm, VH1) - The series premiere of a new show in which Dr. Drew treats eight patients for sex addiction.