This report examines the overall device and technology platform ecosystems for entertainment devices created by large players such as Samsung, Amazon, Roku, Comcast, Sony, Google, and others. The report profiles some of the prominent ecosystems and their unique approaches to the market. It offers insight into the benefits and drawbacks of using hardware and software to create “moats” or closed systems, as opposed to keeping an open ecosystem, and poses the question: do consumers really care about openness of platforms?