Late Show with David Letterman
       
      Late Show with David Letterman
      Show #1333 (7x55)
      
      :  29, 1999
      During the segment "The Best and Worst of the Millennium," an image of Sam Donaldson's eyebrows suddenly comes to life.  Also, during tonight's Open Mic in the Mojave Desert, a technician tests the open mike and adjusts the height.