Background Video in Drupalexp Bloack

I'm trying to show video in certain blocks across the site, but as Of yet I have been unable to link to either Vimeo or Youtube using the "Background Video URL" box. I have managed to show video using an iframe, but this is not the best way for it to work. Can you let me know if this is possible, or do I need to update/add modules for it to work correctly? And congratulations on the theme, it is absolutely superb.. Thanks.