I found the video of Stephen Colbert’s appearance before the Institute of Politics at Harvard an enjoyable and entertaining look at the real life Stephen Colbert. It humoured me to find out, among other things he bases his character on, he really is afraid of bears.
Enjoy the conversation and learn more about what makes his persona on the show in this video, A Conversation With Stephen Colbert. Be aware, the video is about an hour and ten minutes long.