I think that's pretty much the raison d'être of this site, though.
That's next on the list. It's been the #1 request so far: a "just show me the video" link. Perhaps the publisher has an option of enabling in the setup process.
Perhaps you can have videos play a preview on accessing the site - allow the user to click the play button, have the video pause after ten seconds/5% of time, then pop up asking for a tweet if they want to continue watching.