I’m not entirely sure if the video below is actually by official Windows Phone channel, either way here we have professionally made 12 minute video of Lumia 920 and Lumia 820 where Nokia employee tells about the products. It unfortunately doesn’t show anything new on the video itself, though if you speak French you might get something extra out of it.
Video by WindowsPhoneFrance
While we are at it lets check out how Nokia Russia once again seems to be sharing Lumia 920 around to press over there while rest of the press around world hardly gets even touch the phone, let alone private play time.
Video by ruferra
On this link in my opinion still one of the best hands-on videos out of the standard hands-on videos you saw around when Lumia 920 and 820 where announced.