Stephen Colbert Mocks 'Today's' On-Air Prostate Exams (Video)

The host is joined by John Lithgow, Katie Couric and The Black Keys for an over-the-top medical segment. Among those inspired by Matt Lauer and Al Roker's on-air prostate exams during last week's Today show was Stephen Colbert's late-night host character, who saw an opportunity to out-do Today with a star-studded, over-the-top on-air exam. "I will not be out-sweep-swept by the Today show," Colbert said of their segment. "It's no accident that they pulled this ground-breaking stunt during Novembe...