How do I change my server settings so I can watch TV shows for free online?

Hi. I am dying to see my favorite shows like Lost and The Office online, but when I try to go to the network homepage (eg NBC or ABC) it says that I cannot see it in my region. Can someone please give me step by step instructions on how to change my settings so it looks like I am connecting from the US?How do I change my server settings so I can watch TV shows for free online?
you can't change that because they look at your internet service provider - not you.

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