I downloaded a software program to my computer that allows me to watch the U.S. Open live online and basically any other golf tournament. I use it because a lot of times I'm at work during the majors, and there's no TV at work.
It's easy to operate and downloads very quickly. I was watching the Masters in a matter of minutes after I got it downloaded to my pc back in April. The only pc requirements are DSL or cable Internet and a windows operating system (sorry mac users), and it apparently works in any country.
Anyway, the website below will give you instant access if you're interested.
http://tinyurl.com/US-Open-Online
Go Tiger!