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"Shadowboxing" is the eighth episode of the fourth season of the NBC science fiction drama series Heroes and sixty-seventh episode overall. The episode aired on November 9, 2009.
First Air Date : Sep 25, 2006
Last Air date : Feb 08, 2010
Episode : 78 Episode
Season : 4 Season
Runtime: 43:14 minutes
Studio: NBC
Country: United States of America