It's great to see Hip Hop culture go from the streets of New York to achieving more exposure in a professional areas of journalism such as The Smithsonian Channel. Their documentary focuses on "the hip-hop beat, from its roots in the Bronx 30 years ago to its journey to cities all over the world". I haven't seen a full video episode for this online yet, but hopefully it'll become available.

Here is a description from The Smithsonian Channel:

"Hip Hop has evolved from a musical genre into one of the most influential movements of the 21st Century, affecting the way people dress, speak, and even think. Follow the journey from its birth in the Bronx in the '70s, to the time when rap, DJ-ing, break dancing, and graffiti took over New York City and defined a generation. See how the music and its message expanded to inner cities all over the world, including Paris, Berlin, Dakar and the Palestinian territories, and how it became the universal language for people who didn't have a voice."