@junjuvy15 – Hmm, You need code like this:

jQuery('#pum-123')
	.on('pumBeforeClose', function () {
		var $iframe = jQuery('iframe', jQuery(this)),
			src = $iframe.prop('src');
		$iframe.prop('src', '').prop('src', src);
	});

I am actually right this minute working on our newest extension specifically for videos. It has all of these as simple checkbox options for html5 video players as well as Youtube & Vimeo, unfortunately I looked and iPlayer HD does not support most of the features as they don’t have any api or developer docs on how to manipulate the player. If you end up using Vimeo or an html5 provider our extension will likely do everything and more. Fully responsive video handling, 100% customizable player, tie in to our cookies, start & stop on open etc.

Hope that helps.