Check out wwiTB to watch live streaming video of TV broadcasts from all around to world. This is fantastic if you are working on learning another language or just want to see what television is like in whichever country. Combine this with Silent Bob and make yourself some tracks to listen to on your iPod.
Update: Also check out the free Online TV Recorder, which gathers channels from around the world and provides personal Tivo-like saving function.
Update: Here is an index of the growing number of internet based "IPTV" shows.