Season 8, episode 11 was previously titled “The Silence of the Jinx” but has now been changed to ""The Final Page, Part One".
Season 8, episode 12 has respectively changed it's original title from “The Robin” to "The Final Page, Part Two".
For more spoilers on this 1-hour christmas special check out all the goss right here!
Source : CBS
Both episodes will air respectively on December 17.