Using a combination of set ups, descriptions, rants and film of practitioners, Penn & Teller show the Bull Shit that's everywhere. The initial show covers mediums or Talkers to the Dead. Penn Jillette explains in the first program that while calling someone a liar or a con man is actionable, “Bull Shit“ is safe. Each show has a topic such as Mediums, Fenn Shui, Medical devices or Penis Enlargement. Using humor and experts, they debunk the Bull shit.