Although Monty Python and the Holy Grail is one of my favorite films, I had not really thought about where the idea of the Holy Grail originated or what it represented. To me it was just another bit of medieval folklore whose origins were lost in the mists of time. In this clip, he explains some things about it.
(This clip aired on April 3, 2014. 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.)