Somewhat usable with newerererer Youtube layout.
If VLC fails to load, you may need to add VLC install dir (like c:\Program Files\VideoLAN\VLC) to %PATH%. Go to Control Panel ->System -> Advanced-> Environment Variables. If there is already something set in PATH, use semicolon as separator ( like "c:\some\thing;c:\another\place")
Pre version 15 script uses Revolunet's control library.
Since v22 experimental subtitle support. Quirks (for now) if you switch video quality, reselect subtitles again and it should resize text to somewhat readable size. Font size with medium and small quality may be too small though. Position calculation is iffy too. I can't get VLC marquee.position property to work so absolute x,y coords it is.
Hint: Press the stop button on embedded video to bring back thumbnail view with share/info buttons.