1. Go to YouTube - Broadcast Yourself.
2. Press Ctrl + Shift and J in Chrome to open the Developer Tools.
Press Ctrl+Shift+K in Firefox
3. Click on the "Console" Tab and enter
document.cookie="VISITOR_INFO1_LIVE=ST1Ti53r4fU";
*img254.imageshack.us/img254/9874/67884f54e30d4a9394e30f5.png
*k.minus.com/jxWgDrUZdzNH5.png
4. Reload the website and enjoy the new layout.
*www.ghacks.net/wp-content/uploads/2011/11/youtube-new-homepage-600x435.jpg
I could not make it work on Opera.