If you dont like the start-up animation in Windows Media Center, and you would like to skip it, here is how you can do so.
Open Start Menu > All Programs. Right click on Windows Media Center icon and open its Properties box.
Here in the Target box, you will see the target as: %windir%\ehome\ehshell.exe .
Add the switch, /no startupanimation after it. That is, make it:
%windir%\ehome\ehshell.exe /no startupanimation
Click Apply > OK.
This will turn off the animation in Windows Media Center.