'Sam! Interrupted' official description
SAM AND DEAN CHECK INTO A MENTAL HOSPITAL: A former hunter named Martin (guest star), who is currently institutionalized, calls Sam and Dean for help investigating a case in the mental hospital. The brothers get themselves admitted as patients to check out the mysterious monster that is attacking the patients, but their incarceration pushes both to the breaking point as they unleash their inner demons against each other.
Source SpoilerTV. Supernatural returns to the CW on 21st January 2010.
Look Mum, I am not the only who wants to see The Simpsons / Supernatural crossover.
"The Simpsons has a very special “Treehouse of Horrors” planned for this year. It will feature the voices of Jensen Ackles, Jared Padalecki and the guys from Ghost Hunters." Full article here.
TV.com's Top 100 Everything of 2009 (10 - 1)
Supernatural's Changing Channels opening credit came number 5 and Daniel Frickin' Faraday from Lost came number 4. Jane Lynch from Glee came number 3. That's 10 kinds of awesome! Full listing here.
I have been surviving the hot summer Xmas with Lost (season 4 & 5), and 24 (season 4 and 7), plus a few Supernatural and Smallville episodes here and there. It's always great to do a Lost marathon, otherwise I'll get so lost. And yeah, Daniel Frickin' Faraday is awesome! I love mad scientist.