I have rewritten the article so that it is still useful. Download it and make it executable call it ustream-recorder. Important Update (June 28, 2013): the script from the above site does not now correctly locate the broadcasts, so you must use the updated script at at Github. Please first install rtmpdump and vlc, as you require them to follow this article. After following the instructions from this initial blog post, I managed to extract the ISS live url for NASA TV and get it playing in VLC.