But I enjoyed both of these within the last week ...
Extreme Elimination Challenge (MST3K meets Japanese Endurance TV.)
And
Kasparov vs. X3D Fritz (this ran on ESPN2. I was not aware that Chess was now considered a sport. Cool. I play a sport. Like many actual sports, I do not play it well, but enthusiastically. I have managed to beat my portable chess computer on the "exceptionally stupid" setting, and hope to improve at some point in the near future.)