http://www.youtube.com/watch?v=zhZd3WU5l38&fmt=18
(Usually, you can just add "&fmt=18" at the end of the URL to get the high-res, H.264/AVC version of a video, if that video is not older than 1 year.)
http://www.youtube.com/watch?v=zhZd3WU5l38&fmt=18
(Usually, you can just add "&fmt=18" at the end of the URL to get the high-res, H.264/AVC version of a video, if that video is not older than 1 year.)