Comedian Chris Rock on Black Identity

Linguist Geoffrey Nunberg reflects on our use of the term "postmodern" to describe everything from art to architecture. But Nunberg wonders when exactly modernism began and ended.

Massiah is founder and Executive Director of the Scribe Video Center in Philadelphia. He has won numerous awards for the films he has produced for public television. Messiah's latest project is a documentary featuring the late civil rights activist and NAACP co-founder W.E.B. DuBois, called "W.E.B. DuBois: A Biography in Four Voices." It premiers on PBS this month.

Commentator Milo Miles looks at the singing career of Jesse Stone. Stone helped shape the sound that was to become rock and roll. As chief arranger during the early days of Atlantic records, he guided the company towards a more swinging, urbane sound. A new collection focuses on his own singing career.