Impact of health education, specially, in regard to domiciliary chemotherapy, by exposing the patients to a tape-recorded message in a rural TB clinic, was evaluated. The measure appeared to have signficantly improved self- administration of the drugs as assessed by tape and post-tape regularity of chemotherapy of the patients. (From 28 pre-tapes in 1965 to 72 post-tapes in 1969). The measure also appeared to have improved knowledge in other aspects of TB as found by a comparative study of answers to questions between a group of tape-exposed tuberculous patients and another group of not exposed non-tuberculous persons on taped and untaped questions (on untaped questions, the difference was only 1.5 to 1, whereas on taped questions, this ratio was 18 to 1). It was therefore concluded, as a staff, time, and cost-saving measure, taped or gramophone recorded messages played at the clinic may prove of great educative value, specially for clinics serving predominantly illiterate patients.