<http://schema.org/about>
"Discovery Channel, in partnership with the BBC, is set to release the DVD and Blu-Ray versions of their wildly successful LIFE series on June 1st."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/lifestyle/arts-culture/stories/discoverys-life-coming-to-dvd-june-1st>