1. Login to your website.
   
   
2. Go to the text element where you would like to add the Youtube video to and click on Settings from the dropdown menu.
   
   
3. Click on the < > HTML button in the bottom left of your text element.  This will open up the HTML view for this text element.
   
4. In your browser open up another window or tab and navigate to the Youtube video you want to add.
5. Look for the code to embed.  Below is an example embed code that you can test out.
   
   <object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/dMH0bHeiRNg&hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/dMH0bHeiRNg&hl=en&fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>
6. Navigate back your your website and paste this in your HTML where you would like for it to be.
7. Click the Update button.
   
   

Note: This will work for other video sites as well such as blip.tv and vimeo.com.