In the last four years, University Extension, the University of Wisconsin, has developed two new communications, the Educational Telephone Network (ETN) and Subsidiary Communications Authorization (SCA). ETN is an interacting, party-line type connection which links instructors with remote classrooms in courthouses, hospitals, and universities. SCA is an electronic technique which allows a second signal to be broadcast on an FM channel and received only by individuals with the appropriate multiplexing receiving equipment. Both systems have been used to deliver educational programing with a typical format consisting of lecture sessions followed by question and answer sessions. Each can be used to provide broad dissemination of community service messages. (EMH)