Over the last few years, the internet has been changing a lot in the background. In earlier days, everyone was pretty much the same online and there were very few restrictions and blocks.
However that's all changed now and you'll find most of the big website particularly those with video and audio, now restrict access based on your location. You can't access the BBC from outside the UK and you'll have no luck watching Hulu online without a US IP address.
This video shows how you can change all that - by changing your IP address to a USA one you can watch all the US sites from anywhere. Enjoy.