Teachers in El Salvador who participated in a three-month retraining course were given comparable questionnaires during the first and last week of the course, to examine their concepts about instructional television (ITV), professional roles and responsibilities in ITV-aided classrooms, and teachers' problems. Of the 92 teachers who completed the course 72 completed both questionnaires. Because participants in the course were younger, more experienced and better educated than most teachers in El Salvador, the results have limited generalizability. The results indicate that during the course teachers gained a better understanding of the objectives of El Salvador's Educational Reform Plan, that they moved toward a more realistic understanding of the disadvantages as well as the advantages of ITV, that they came to feel ITV in the classroom will require more instead of less class preparation time, and that more attention will have to be paid to teaching principles of problem solving. In addition, by the end of the course the teachers came to expect more of the Educational Reform Plan, in curriculum and organization. (MG)