Television system targeted advertising is described. In an embodiment, a content provider monitors a real-time state of television-based systems for a power on/off state and a tuning configuration. The content provider delivers advertising content to one or more of the television-based systems when they are powered-on and configured to receive the advertising content. The one or more television-based systems then receive the advertising content to display a targeted advertisement for viewing. The content provider records how many of the television-based systems receive the advertising content, and records how many of the television-based systems that receive the advertising content then display the targeted advertisement for viewing.