http://podcast.nationalgeographic.com/~r/dog-whisperer/~5/KCfi9Shni44/06625_00_Unplugging-Spark_006.m4v Unplugging Sparky http://podcast.nationalgeographic.com/~r/dog-whisperer/~3/KCfi9Shni44/06625_00_Unplugging-Spark_006.m4v 2009-05-21 http://assets.libsyn.com/item/k-5448fe8fcd5ab746