If you are familiar with what is, at least to me, the comic genius of Ricky Gervais (The Office; Extras), then I strongly encourage you to listen to the weekly free podcasts he's doing, with his usual partner, Steve Merchant, and their producer Karl Pilkington. I've listened to the first three now and each time have been laughing out loud - twice on planes, and then yesterday so hard in my car that I had to pull over. Gervais' humor is quite British, and my suspicion is that, if you don't already know him, you'll either find it ridiculously funny or, well, just ridiculous. An extra reason to like it is the strong reason-versus-nonsense streak that pervades a lot of Gervais' comedy. In this regard, Pilkington is the perfect partner. The partial discussion of some aspects of evolution in the third episode is a particularly wonderful example. Each episode will be available for download for four weeks, so you still have almost two weeks to get the first one, before it vanishes.