Shouldercannon,
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<script>
var data = '<body><div class="video-content">tra-ta-ta</div></body>';
var videoblock = $(".video-content", $("<abracadabra>", {html : data}))
alert(videoblock.html())
</script>