Jon Stewart, Stephen Colbert try to crack each other up on 'Colbert Report'

Time for one more Jon Stewart-Stephen Colbert lovefest before Colbert goes to host "The Late Show" -- very specially timed to the fact that Jon Stewart has a movie to promote. "My guest tonight is the host of the liberal, elitist 'The Daily Show' and executive producer of the Emmy Award-winning 'Colbert Report,'" Colbert announced on Thursday's show. "Please welcome Jon Stewart!"