I've taken german in school for several years, meaning I got the basics of the language somewhat ingrained in me. One of the ways to improve my skills, I notice, is by watching english (or swedish, which is my native language, but I'm not asking for that here) subtitled tv shows in german. However, I would like to get hold (preferably free) of subtitled tv shows with some kind of intellectual content (could be philosophical discussions, science shows et cetera).
(For example, I find the show "Quarks & Co" pretty okay. Problem is, it's not subtitled.)