What’s better than a Christmas carol? A Christmas carol with a built-in puzzle, of course. In our forthcoming Holiday Spectacular, we play a game in which house musician Jonathan Coulton sings clues to the tune of “Deck The Halls.” Contestants must sing the answers with “fa-la-la’s.” It all fits together into one gloriously weird song, which you can hear in this podcast-only extra, featuring contestants Rob Gilleece and Karen Sloan. Hear the full Holiday Spectacular episode starting December 17th, 2013.