Public service radio programming provided by state extension services will change drastically in the near future due to broadcast deregulation. The two aspects of deregulation affecting land-grant radio programming are elimination of the limit on the number of commercials per hour, and elimination of requirements specifying the amount of news and public affairs programming. As a result of these changes, many states are shifting emphasis from agriculture and other traditional topics to more consumer-oriented programming, and states that do not permit local sponsorship of their programs may experience problems. In some states with large special audiences, loss of free air time may be countered by syndication of some land-grant programming, or networking and satellite delivery of programs directly to intended audiences for a fee. This paper includes 13 references and offers, as example, a description of recent trends in programming by the Mississippi Cooperative Extension Service. (SV)