Hulu.com has lots of interesting TV Shows and TV episodes (like Saturday Night Live, The Simpsons, The Office, Family Guy). But if you're outside the U.S., you will get the message the message that these videos are not availably outside the U.S.
To watch videos from outside the U.S. you may use an American proxy server.
You may also use freeware VPN software
Hotspot Shield to makes Hulu think you're browsing from the U.S.
Hotspot Shield runs on Windows Vista/XP/2000 and Mac OS X.
Note that many users compain that Hotspot Shield is not working for Hulu, but you can use many commercial VPNs like
StrongVPN,
HappyVPN,
HotSpotVPN that work fine with it.