 Colbert first appeared as a correspondent on Comedy Central's news parody series "The Daily Show" in 1997 and remained a regular contributor until 2005, when he left to host "The Colbert Report", a spin-off show satirizing personality-driven political pundit programs.He has also been featured in a number of other public performances, most notably at the 2006 White House Correspondents' Association Dinner, and as the author of the books "I Am America (And So Can You!