I'm not sure how long this will last, or if it's a permanent, official change, but it bears reporting regardless. As first reported here by the French website SithClan.net, the Clone Wars episode Grievous Intrigue appears to be available for viewing outside of the U.S on StarWars.com. I've confirmed this with a friend in France, but I've been unable to get further confirmation from residents of other countries.
The episode can be found here. If you're outside the United States and can confirm that this works or doesn't, let me know.
If this is indeed available for viewing all around the world, it could be for one of two reasons. Either Lucasfilm has finally made episodes of its hit show available online internationally, or this is an unintentional availability, one that might be rectified soon.
UPDATE: Folks from Italy, Mexico, Israel, England, Canada, and Sweden have informed me that the video does indeed work in their countries. I think that settles it; this was a global change. I won't keep updating this list, but thanks to everyone who emailed for keeping us informed.