8 pm/ET, NBC What's 71 feet tall, 40 feet wide and about to make the season REALLY bright? Nancy O'Dell and Al Roker throw the switch on the massive Norway Spruce sprucing up Mid-Manhattan, surrounded by guests Chris Isaak, Jessica Simpson, Clay Aiken, Kenny Chesney and the always-luminous Vanessa Williams. Damian J. Holbrook
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Can the Time After Time stars, who were nearly unrecognizable with facial hair, recognize other actors by only seeing their facial hair?