In an all-new holiday-themed episode of "The $100,000 Pyramid," it's a battle of comedians when Seinfeld's Jason Alexander goes head-to-head with Bobby Moynihan, and later, even more laughs with comedians Rosie O'Donnell vs. Pete Holmes.

In a new "The $100,000 Pyramid," actor and comedian Deon Cole goes head-to-head with actress D'Arcy Carden, then "Jeopardy!" host Ken Jennings battles "Sex and the City" star Mario Cantone.