If you want to call attention to a certain video, you could Feature it. Another way would be to put a colored background behind it. For example, the code below will add a yellow background to the video whose name incudes the words "Magic Town", as seen in this picture:
Here is the code:
x$('div.xg_list_video').find('a:contains("Magic Town")').parent().parent().parent().css('background-color', 'yellow');
Paste this into your Custom Code box, then change "Magic Town" to some words in the title of the video you want to highlight on your site, and change 'yellow' to whatever background color you want.