Here's that Stanford African-American Freedom Struggle course I referred to several times during the episode by Clayborne Carson. iTunes U link.
It's really an excellent course, with maybe 2 and a half lectures on DuBois covering his (long) life, starting with this one:
Watch the introductory DuBois lecture on youtube.
Carson's lecture on MLK is great; you can see him respond to the plagiarism issue, talk about King's theology, and more. For more King, don't miss the later ones by Vincent Harding and Clarence Jones, who worked directly with King. Other lectures fill the historical gaps between DuBois and MLK, and this course is one of the few (Carson says) that goes up to modern times, with episodes on Tupac and Obama (as he was running in the primary for the 2008 election).