Stargate SG-1: about a group of adventurers who travel through an interstellar travel device called a "stargate".
Stargate Atlantis: spinoff of stargate sg-1 about a team of explorers in another galaxy of the same universe.
Hell's Kitchen: reality show where the famous chef Gordon Ramsey pits contestants through a series of challenges, the winner gets their own restaurant. Like survivor only not lame or stupid IMO.
Psych: about a guy who is hyper-sensitive to detail and sort of falls into the role of being a psychic. Only naturally he's not, and he has to constantly do hilarious antics to cover up his perception-based ability so everyone keeps thinking he's a psychic.
EDIT: Sorry the above shows aren't what you would call "teaching shows". As far as teaching shows go, I like to occasionally watch Dirty Jobs, and Myth Busters. I misinterpreted it as a general question of what shows your watching. Happy to edit if you like.
Edited by solaris32, 11 July 2007 - 11:49 PM.