Watch this "Psych: The Musical" (9 p.m., USA.): The producers have been talking about it for years and now they've finally created a two-hour spectacle that is equal parts mystery and melody. Fourteen original songs highlight the episode in which Shawn and Gus (James Roday, Dule Hill) try to track down a playwright, (Anthony Rapp) who was declared criminally insane after trapping a critic in a theater and burning it down. Can they get their man? More importantly, can they hit the high notes? "The Simpsons" (8 p.m., Fox.): In a Christmas-themed episode of "The Simpsons," snow comes to Springfield, but only because of a radiation leak at the nuclear plant. D'oh!
"Survivor: Blood vs Water" (8 p.m., CBS)
The 20 castaways of SURVIVOR: BLOOD VS. WATER that will be competing with their loved ones and other returning players on SURVIVOR: BLOOD VS. WATER, when the Emmy Award-winning series returns for its 27th season with a special 90 minute premiere, Wednesday, Sept. 18 (8:00-9:30 PM, ET/PT) on the CBS Television Network. Photo: Monty Brinton CBS ÃÉÂÇÃÇÂ© 2013 CBS Broadcasting, Inc. All Rights Reserved.
: Give thanks. We've made it through another season of "Survivor" without any cannibalism. Still, there has been plenty of back-stabbing and smack-talking, which comes to an end in tonight's finale. "Wine to Water: A CNN Heroes Special Presentation" (8 p.m., CNN): This new documentary showcases the extraordinary work of Doc Hendley, who has helped bring safe drinking water to thousands of needy people across the globe.
Also Sunday: "60 Minutes" (7 p.m., CBS) "Once Upon a Time" (8 p.m., ABC) "Homeland," Season finale (9 p.m., Showtime) "Family Guy" (9 p.m., Fox) "Revenge" (9 p.m., ABC) "Withes of East End," Season finale (10 p.m., Lifetime) "Masters of Sex," Season finale (10 p.m., Showtime)