unfortunately no, everyone has their own settings on playback on youtube, some set it to play hd automatically and some not. The reason you can't set this to happen is that some people have to pay a certain amount for a number of processes on a page loaded at a time and if videos were automatically going HD then their bill would rise all the time, there is a way to set a video to be 3D when it is played, if you search youtube for it there is a tag you can add to your video known as a formatting tag