Here's a quick demonstration of how you can buy an IP address to hide your identity online. It's great for maintaining privacy so that websites you visit don't record your identity.
You can also use a different IP address to access resources which are normally blocked based on your location. This program allows access to a whole host of servers all across the world, which means you don't need to purchase another IP address ever again.
To bypass local filters and blocks simply pick a country near you with few restrictions like US or UK. To access content which is locked to specific countries simply use a server in that country.
So to watch the following 1)BBC iPlayer - British Address 2) Hulu - USA Server 3) CTV - Canadian IP Address and so on.