There are eccentric people everywhere. The thing about small towns is that such people are much more likely to stand out and actually have an impact. The people behind The Colbert Report seems to have the knack for finding such people and getting them to agree to be on TV.
(This clip aired on November 13, 2013. To get suggestions on how to view clips of The Daily Show and The Colbert Report outside the US, please see this earlier post. If the videos autoplay, please see here for a diagnosis and possible solutions.)