Many educational institutions need to upgrade the systems used to deliver video content to classrooms, either to replace aging technologies or to support a greater range of content and viewing devices. IPTV networks, particularly those based on newly available technologies, offer significant video quality improvements and provide a unified user interface for live, pre-recorded, on-demand, and Internet-sourced video. IPTV systems can be installed incrementally as an overlay to an existing network, or can be deployed as complete replacements of an existing system. Recent cost reductions, particularly in key software and server components, have now made IPTV technology affordable for virtually any school system.