One of my favorite shows on TV/Mobile/Web is Dexter. The Season 4 premiere airs on September 27 on Showtime. When I saw this new video I was absolutely enthralled. Try to find and click on DEXTER to go to LEVEL 3. You have to click quick before he disappears!
I think it is one of the most clever ways of using YouTube's deep link feature. Once your done with level three you can try and find Dexter in Level 4 below.