As the fourth part of a comparative study on the administration of audiovisual services in advanced and developing countries, this UNESCO-funded study reports on the African countries of Cameroun, Republic of Central Africa, Dahomey, Gabon, Ghana, Kenya, Libya, Mali, Nigeria, Rwanda, Senegal, Swaziland, Tunisia, Upper Volta and Zambia. Information derived by questionnaire describes the school system and the structure, organization and functions of the audiovisual centers in each. Methods of control, testing and evaluation, teacher training, production and distribution facilities and international cooperation are included for some countries. Each country's tendencies toward reorganization of its services is assessed. Recommendations are made for further development of audiovisual services in developing countries. (SK)