Link, comment.

http://forums.cnet.com/7723-13973_102-604957/us-ln46a550-lcd-in-uk-with-sky-hd-no-signal/?tag=contentBody;threadListing is yet another poorer soul that tried it.

The gaming console if from the same region is of course fine.

I'm unsure but all this has some thousands of posts where folk are in trouble. Are you wanting to repeat their woes?

And if the makers are not answer your questions, why would you go near them except to ask again?
Bob