Good job on putting together a collection of ready-to-use video streams. I noticed a couple issues so far (may or may not be related to the streams). One is I'm unable to Update the list via the refresh button. I get "Unknown error". Secondly, I noticed stuttering while playing back streams from at least the NOVA Vodcast. Also, when I tried playing one of the PBS Nature streams, the audio came through fine, but the video was terrible. The picture would update like once per 20 seconds or so. It seemed to be freezing media player up because it took a long time before I was able to exit out of it (let alone from fullscreen mode).

Edit: I forgot to ask where the comedy central streams are listed under?

Edit2: How do I get the streams to play under mplayer instead?

Edit3: Today Show streams give me about 1fps or less.