TV show Theology

The questions was asked: "What tv shows get you thinking about theology and ethics the most?"

In terms of theology I would have to go with Buffy the Vampire Slayer, or most any vampire show. The vampire mythos involve mechanics based on theology and so certain questions arise. Would a vampire recoil from any symbol of faith (chalice, cross, star of David, etc.)? Can all clergy create Holy Water? Does the symbol of faith have an inherent power over vampires, or is it the faith of the person wielding it that imbues it with the power? If it is the wielder then would an atheist have any symbol? If someone saw that certain holy items protected against vampires would they still be an atheist? In the context of Buffy some of these questions are answered, so the question then becomes if "you" were writing a vampire tale how would you handle these questions. What aspects of the vampire mythos would need to change to be consistent with your worldview?