A study of 36 factors which could possibly limit the use of instructional television (ITV) in elementary schools consisted of an analysis of the responses to a questionnaire administered to 318 teachers who taught in kindergarten through grade six. Chi-square tests were computed for each factor in relationship to the average frequency of classroom ITV use per week. Results indicated that the 20 factors which affected the frequency of use included some teacher characteristics and attitudes, school and class size, grade level, planning and management, and ITV content. Comments by teachers indicated that a major factor in the use of ITV was public opinion toward its use. A selected bibliography of relevant research is provided. (CMV)