Youtube HD Premium

This is script is modified from the "Youtube HD" script made by adisib. As he has not updated his script for a while now I have decided to upload a version that fixes several bugs. The Premium quality option was previously bugged and could never be selected by the script. Broken/out-dated features have either been fixed or removed.

This script is compatible with YouTube in all languages.
This script works with YouTube videos that are embedded in other sites.