This paper is based on a report entitled, Strategies for Sustainable Preservation of Born Digital Public Television, published in February 2010 by the Preserving Digital Public Television Project (PDPTV) [1], part of the National Digital Information Infrastructure and Preservation Program (NDIIPP) of the Library of Congress. In that comprehensive report, which is aimed at a US public broadcasting audience, we present the technical, operational, and economic requirements for digital preservation to a large, diverse, and fragmented system that is generally unaccustomed to including preservation in its mandate. The report is largely framed around the guidelines established by the Reference Model for an Open Archival Information System (OAIS) and Trustworthy Repositories Audit and Certification: Criteria and Checklist (TRAC), and argues that there is an urgent need for a dedicated digital preservation repository, or system of repositories. It discusses some economic and business models that such a repository might employ in order to sustain its operations. The report also presents a case study of the costs related to the development of the prototype preservation repository developed at New York University for the PDPTV Project. In this paper, we present some of the key findings of that report, and argue that sustainable preservation of public broadcasting requires the continual presence of six key factors: alignment of stakeholders, the integration of archival-friendly practices in the digital production workflow, following OAIS and TRAC guidelines, clear communication of value, the application of appropriate business models, and an ongoing re-evaluation of preservation needs and users expectations.