Monty Python: Almost the Truth (9pm, IFC) - Tonight is part one of a six-part documentary series which is a must-see for every Monty Python fan. The first installment focuses on their early years, and includes interviews with Ronnie Corbett, Neil Innes, and Bill Oddie.
Dexter (9pm, Showtime) - Rita and the kids take a trip, leaving Dexter some time alone to ... work. But will he follow through with his plans when he starts to empathize with his potential victim?
Curb Your Enthusiasm (9pm, HBO) - Larry has a dispute with Rosie O'DOnnell over a restaurant bill.
Brothers & Sisters (10pm, ABC) - Sarah is back from her trip to France and distracts Kitty from her cancer with tales of her romantic fling with an artist, played by "Dancing with the Stars" and "Sex & the City" star Gilles Marini.