How do you cite YouTube videos in a MLA format?

Here is an example provided by the Media Resource Center of the University of California at Berkeley, which should serve as a formatting guideline:

Shimabukuro, Jake. "Ukulele weeps by Jake Shimabukuro." 04 April 2008. Online video clip. YouTube. Accessed on 22 April 2006.Since the new 7th ed. of the MLA came out this year, the correct citation is as follows:

Obama, Barack. "We Have a Lot of Work to Do." Speech. 2 Nov. 2008. YouTube. 23 June

2009.

"Midnight Train to Georgia." Perf. Gladys Knight, Ben Stiller, Jack Black, and Robert

Downey, Jr. American Idol. 21 May 2008. YouTube. 6 June 2009.