What I mean to say is that when I put this code into the Text Home box:
<iframe width="960" height="720" src="https://www.youtube.com/embed/J72Qi7b8O20&autoplay=1" frameborder="0" allowfullscreen=""></iframe>
…it gets turned into this:
<iframe width="960" height="720" src="https://www.youtube.com/embed/J72Qi7b8O20&autoplay=1" frameborder="0" allowfullscreen=""></iframe>
…and it will not work. The & character gets turned into & and causes the iFrame to fail.
Does that make sense?
This happens even when I paste the code into the source view.