Watermarking technology, answering TV industry requirements, (1) has emerged in trials over the last few years. While the initial deployment focus has been largely on future digital cinema applications (2), there are significant challenges of scalability, performance, and economy in adapting the same technology to today’s content delivery networks (CDN) to the home. This paper, drawing from RFI (3) responses for candidate technology for the Widevine ‘Mensor™’ (4) digital forensic system, discusses the compromises necessary to engineer an economical watermarking solution for home entertainment.