Penn and Teller
 

Their Bullshit series, which purports to do some critical thinking about popular misconceptions, is absolutely awesome :) I envy you lucky dogs in the states who'll get it if you've got showcase; I've got to wait for the DVDs.

Anyone who's seen it, list your favourite episodes. Mine are;
Environmental Hysteria: Getting hippies to sign a petition against dihydrogen monoxide (H2O for the ones without a periodic table ;) ) while a co-founder of greenpeace laments the organization being taken over by people with a political agenda.

Eat This: Why people living in a spacious house in florida should shut the **** up about what starving people around the world should and shouldn't eat, how one man saved a billion lives, and why greenpeace has its head up its ass about genetically engineered foods.

Any of the religion ones ;)

I've never made the effort to watch them. If they are on something while flipping channels, I'll watch for a very brief moment.

Its probably on the upper channels we don't pay for so miss them.