television programming and production; video production; motion picture film production; development and dissemination of educational and entertainment materials in the fields of language arts, mathematics, science, social studies, computer skills, family education, teacher training, visual arts or music; educational services, namely, conducting classes, seminars, conferences, or workshops, either live or via electronic communications networks for parents or educators in the fields of childhood education, family education and teacher training, or for parents, educators or children in the fields of language arts, mathematics, science, social studies, computer skills, visual arts, theater or music; providing training services in the nature of classes, seminars and one on one instruction to assist schools in setting up or operating an on line site, all excluding services associated with the manufacture, design, installation, operation and maintenance of communications equipment and electronic communications network infrastructuresss