OK, now you can just paste the U1DBQgAJTWg part and click the YouTube icon I just added. If you don't see the icon, you must click the Go Advanced button to see the full what-you-see-is-what-you-get editor with all the post editing options. The Quick Reply box you see at the bottom of this thread is the slimmed down version. In addition to this new YouTube button, the Go Advanced version also gives you the smileys
