I don't think that there's any mandolin content specifically, but this weekend you can watch George Harrison's Concert for Bangladesh free from http://www.theconcertforbangla​desh.com, http://www.georgeharrison.com, and on iTunes.

Here's a link to the Concert for Bangladesh

Performers include: Ravi Shankar, Bob Dylan, Eric Clapton, George Harrison, Billy Preston, Leon Russell, Badfinger, and Ringo Starr.

I have NFI or involvement, but it is part of Ravi Shankar's Month of Giving.

Larry