Broadcasters in a number of nations and regions operate under content regulatory schemes designed to serve cultural and economic purposes. Most of these policies were put into place during the age of terrestrial broadcasting in which national policymakers could tightly control the availability of content in the country through their control over broadcasters. Today, satellite and broadband telecommunications provide audiences far wider access to content from across borders, calling into question the purpose and efficacy of domestic content policies. This report addresses these issues through an analysis of the rationales, policy approaches, operations, and effectiveness of domestic content policies in four countries (Australia, Canada, Ireland, and South Korea) through a cross-case comparison. It considers the implications of these approaches to the environment of a globally connected world.