Its a tie between National Geographic and Science channel. Sometimes Discovery Times channel shows you some very interesting antropological programs, and sometimes you get to see interesting military stuff on The Military Channel
But I'm not a big TV watcher anyway, since I spend my evenings after work either in class or studying. Every once in a while there is something I really want to see and someone will record the program for me. My boss was nice enough to record the National Geographic "Extraterrestrial" program for me.
If I watch TV, which is extremely rare, I would watch PBS, or perhaps National Geographic, or TLC for a specific program. I have way too many tasks to accomplish, places and people to visit, and books to read. Ah, life is full and overflowing.
The problem I have with most media is the fact that the report are journalists, not scientists, so some of the time the facts or information are misinterpreted or misunderstood. And then some scientists or technical people exaggerate or sometimes oversimplify the science or technology.
Discovery Channel is my favorite. Myth busters, Extreme Engineering, Disaster Detectives all godo shows. IM really gettin sick of these shows about motorcyles and hot rods seems like they get majority of teh air time. Anyone see that special about the MIT Black Jack Team. They use math and devised a method to beat the casinos!
I agree. PBS offers the broadest spectrum of intelligent, informative programming. From NOVA, Nature, and National Geographic to Mystery, Antique Roadshow, history specials, Lehrer, great dramas, current event documentaries, biographies, live concerts . . . my favorite single channel.