put your video in front of the text in html view and ad this infront the iframe <div style="float: right; width: 55%;">and a close div(</div>) after the iframe so the iframe should look like:
<div style="float: right; width: 55%;">
<iframe width="339" height="202" src="http://www.youtube.com/embed/YcHITs7Z0aw?rel=0" frameborder="0" allowfullscreen></iframe>
</div>
you might need to play about with the percentage to get it right as i have only used this with small maps and wouldn’t be able to judge the size
hope this helps