I just uploaded a video and the quality sucks (normal for youtube I know). My question is, how do I get the little icon under the video to click on for HD? Also, what is the little code that I add to the link to make it HD for the older videos?
You can't get HD on there unless the video you upload is at least 720p. Otherwise, the most you'll get is the HQ symbol, which is usually there for resoltuions down to 640 x 480.