UNNATURAL CAUSES will be rebroadcast nationally on PBS on four Fridays at 10 PM beginning October 9, 2009.

However, local PBS stations may rebroadcast it whenever they like. Please contact your local PBS station to ask whether they will broadcast during the national feed or at another time.

The series first aired nationally on most PBS stations in spring 2008 at 10 PM on four consecutive Thursdays (March 27, April 3, 10, 17).