I love James Randi, The Skeptics Guide and Penn Point about as much as Bullshit!. And I love how on the last one they pick very heated topics to mostly defend their own (and maybe just apparently) biased point of view.
Some topics give birth to mostly satirical episodes such as Vaccination or the Bible, others deal with more delicate subjects such as Recycling or Cheerleaders. And so I wonder if there is any episode in which they are plain wrong? If there is, do they ever said something about it?