The modern world of YouTube and other streaming video changes this experience quite a bit.
You can go ahead and watch other people's.
These are the places where people give advice, and other such things.
So post your videos.
Go to 023:54 for the start of the Baccalaureate:
2008 Baccalaureate Celebration - AOL Video
Oprah Winfrey's 2008 Stanford Commencement Address - AOL Video
I enjoyed the Baccalaureate better than the comencement.