The brilliance of Tina Fey and Amy Poehler was on display again on the December 19, 2015 edition of Saturday Night Live. Both sketches posted here are top notch, a far cry from their disappointing movie "Sisters" they were promoting with an SNL appearance. This? Not so much. For proper Christmas flavoring, SNL musical guest Bruce Springsteen brought out his good friend Paul McCartney to help with "Santa Claus is Coming to Town."