Wisconsin Public Television is a state network of public television stations operated primarily by the Wisconsin Educational Communications Board and the University of Wisconsin–Extension. It comprises all of the PBS member stations in the state outside of Milwaukee. The state network is available via flagship station WHA-TV in Madison and five full-power satellite stations throughout most of Wisconsin. As of April 5, 2009, all stations have converted to digital-only transmissions. WPT is also available on most satellite and cable television outlets.