218 - The Holy Grail

The concept of the Holy Grail as ultimate quest item, the true goal of any quest has sunk into the fabric of our culture.  When did the concept of the Grail and the Grail quest get started?  What is the Grail: last supper cup? serving dish? magic rock?  Is there any adaptation of the Grail Quest better than that of Monty Python?  These questions and more are answered this week.