Today, youtube came out with a playstation 3 and wii interface that is really well suited for television. I think it is also well suited for the computer as it is really streaminlined and nice.
Sadly, they don't make it available for viewing it on the computer.
But you can make it work on your computer.
The way they check is by checking your playstation 3 user agent. Luckily, you can make your computer pretend to be a platstation.
The playstation user agent is:
Mozilla/5.0 (PLAYSTATION 3; 2.00)
There a lot of different ways to fake your user agent. I am going over how to do it with Safari on mac.
First you need to enable the "develop" menu in Safari. To do this open the terminal application in /Applications/utilties/terminal.app. Then type the following into:
defaults write com.apple.Safari IncludeDebugMenu 1
Once you do that, restart Safari and you will see a new "Develop" menu between the "Bookmarks" and "Window" menu. I know its weird because the command says IncludeDebugMenu and then you get a Develop menu, but just trust me. Click on Develop and choose, User Agent-> other from the drop down.
In the box that pops up type the Playstation 3 user agent from above.
Then visit the new youtube TV interface:
http://youtube.com/tv
Remember to switch back to the default safari user agent when you are done using the same menu.
Nice tray!