THE LACK OF COMMUNICATION BETWEEN THE EDUCATIONAL TELEVISION LECTURER AND THE STUDENTS WAS CONSIDERED. A FEEDBACK SYSTEM WAS DEVELOPED TO ENABLE A STUDENT TO INDICATE HIS RESPONSE TO A TV LECTURER'S QUESTION BY PUSHING ONE OF FIVE BUTTONS AT STUDENT STATIONS IN THE TV LECTURE AREA. VIA A READ-OUT DEVICE THE INSTRUCTOR EVALUATED THE STUDENT RESPONSES AND ANSWERS, THEN HE ELABORATED HIS DISCUSSION OR HE CONTINUED LECTURING. CHART REORDERS KEPT A PERMANENT RECORD FOR LATER ANALYSIS. AN EXPERIMENTAL GROUP OF 102 STUDENTS, SELECTED AT RANDOM, ATTENDED TV LECTURES IN THE HUMANITIES. THE EXPERIMENTAL GROUP AND CONTROL GROUP A WERE GIVEN TV LECTURES WITH FEEDBACK, A THIRD GROUP, CONTROL GROUP B, WAS GIVEN THE SAME TV LECTURE AT A DIFFERENT TIME WITH NO FEEDBACK. AFTER NINE LECTURES, A TEST ON LECTURE FEEDBACK MATERIAL AND ON OUTSIDE READING MATERIAL WAS ADMINISTERED TO EACH GROUP. THE EXPERIMENTAL GROUP AND THE CONTROL GROUP A DID SIGNIFICANTLY BETTER ON TESTS. LEARNING WAS ENHANCED TO A SIGNIFICANT DEGREE UNDER THE EXPERIMENTAL FEEDBACK CONDITIONS TESTED.