The above post uses the html:

<iframe width="480" height="390" src="http://www.youtube.com/embed/sTIjnZE-KUA?rel=0" frameborder="0" allowfullscreen></iframe>

If you can attempt to embed this with HTML only enabled, I might be able to see what was done.
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"The devil I'll bring you," answered Hagen. "I have enough to carry with my shield and breastplate; my helm is bright, the sword is in my hand, therefore I bring you naught."