Here's a nice podcast:
No Such Thing As A Fish. I have an annoying feeling that I should have listened more closely during the No such Thing As A Mean Butterfly episode, 'cause I never did catch the mean butterfly. Maybe just because they're all not-average? I'm on to the next one: No Such Thing As A Pig in Court! Good for listening to on the treadmill...
Addition:
The British Amateur who debunked the Mathematics of Happiness, via Sean Bonner