Código HTML:
<iframe width="640" height="360" src="http://www.youtube.com/embed/nGvNm1NE4F4?rel=0" frameborder="0" allowfullscreen></iframe>
<iframe width="640" height="360" src="http://www.youtube.com/embed/nGvNm1NE4F4?rel=0" frameborder="0" allowfullscreen></iframe>