When did the sixth season premiere of the show whose 12th episode of that season is called "False Positive"?
False Positive (How I Met Your Mother) "False Positive" is the 12th episode of the sixth season of the CBS sitcom "How I Met Your Mother", and the 124th episode overall. It aired on December 13, 2010. It features guest star Alex Trebek.
Weeds (season 6) The sixth season of "Weeds" premiered on August 16, 2010, on the television cable network Showtime, and consisted of 13 episodes.