An evaluative questionnaire completed by 30 high school principals and 159 high school students who used the TI-IN Network demonstrated the advantages of interactive satellite television instruction for rural and small schools. The study found that a large number of subscribers to TI-IN were small rural high schools whose principals stated that satellite courses were an integral part of their school's curriculum. Most students (85%) enrolled in one satellite course, 14% in two courses, and 1% in three different courses. Most participating students were seniors (44%), followed by juniors (25%), and sophomores (22%); 80% of the schools limited enrollment in satellite courses to "A" and "B" students. Most principals rated student/teacher interaction as excellent/very good and students reported initiating two to three telephone calls each week to television teachers during broadcasts. Students perceived satellite courses as more difficult than regular classes (65%) and 70% would prefer regular classrooms. Major strengths of interactive satellite instruction included a variety of classes available, television teacher personality, and interesting instruction. Least liked aspects included too much homework, too difficult, impersonal, and difficult telephone communication. The report describes the TI-IN Network, reviews costs of Network use, and discusses advantages of interactive satellite instruction in general. (LFL)