This clip, 'introduced by Barbara Drake Boehm, Curator, Department of Medieval Art and The Cloisters, Metropolitan Museum of Art (MMA)', is more than two hours long, so leave yourself plenty of time to watch it.
The Game of Kings: Medieval Ivory Chessmen from the Isle of Lewis (2:10:15) 'Discover what the Isle of Lewis chessmen can tell us about the development of chess as both a game and an art form.' [4 March 2012]
It features Dylan Loeb McClain, New York Times; James Robinson, British Museum; and Charles T. Little, Metropolitan Museum of Art. See also The Metropolitan Museum of Art - The Game of Kings, with a further podcast.