Techniques for enabling an augmented reality system to complement operation of existing output devices in an environment are described herein. An augmented reality system may include one or more augmented reality functional nodes (ARFNs) that are configured to project content onto different non-powered and/or powered display mediums. The ARFN may identify existing output devices, as well as any content that these content output devices currently output. The ARFN may then either take over the display of the content when appropriate, or may project related content.