Sopcast is a software which you can use to watch the video and listen to radio on the Internet. You also can broadcast your on tv channel if you want for free. On Vista, I used Sopcast to watch Formula1 race. When I am using Ubuntu, I have no idea how to watch the show. I look around and finally I found one post on Ubuntu forum discussing about how to install Sopcast.
On Windows, Sopcast comes with really good user interface but not on Linux. So you need to install special modified code to get the GUI
