When I first became interested in looking at TV streaming to PC, my first port of call was to look at the product by Satellite Direct that I had been recommended by my friend.
Here is a video I recommend. It tells you a little more about the product and why it is the best live streaming software around.
Click here to watch the Satellite Direct TV Streaming to PC video.
You can also check out Squidoo Lens I created a while when I first decided to try and spread the word about live streaming software.