A TV Network where series that have "jumped the shark" go to die. The network offers assisted cancellation to help a show through its final episodes, then when all agree the time is right, a plastic bag is placed over the show's head, and helium tanks are turned on.
"Man, I can't believe Firefly got sent to Final Exit TV Network."
"Hey, dude, it was better that way. No suffering. Now when they gonna do ER?"