Overview: Live From New York (and opening the 30th season of SNL), it's...Chris Parnell Sketches include ""First Presidential Debate 2004,"" ""Dr. Porkenheimer's Boner Juice,"" ""Debbie Downer,"" ""Swift Veterans for Truth,"" ""Kerry Campaign Stop,"" ""The Escalator,"" ""Obnoxious Wedding DJ,"" and ""Kitty Kelley's 'The Family.'"" Nelly performs: ""My Place"" and ""Na-Nana-Na"" The Dr. Porkenheimer fake commercial is not shown in the 11/27/04 NBC rerun.