The TV Addict has just learned something awesome. Actually, it’s not so much awesome, as legendary. Seriously. For on November 23, not only are HOW I MET YOUR MOTHER fans invited to a very special Thanksgiving-themed episode in which Lily’s estranged father (played by special guest star Chris Elliot) shows up announced and in doing so, allows for us to learn what led to their estrangement three years prior. The episode’s title is… wait for it… “Slapsgiving 2: Revenge of the Slap.” More first look photos of which can be found after the jump.