Evaluation of the tv courses in a: technical english / b: basic economics / c: concrete / d: craftsman entrepreneurs / e: philosophy / f: esperanto / g: archaeology / h: play and education: / i: futurology / j: refresher course 5 for general practitioners / l: cold war history / m: protection of environment / n: basic english / o: statistics / p: civil law / q: evening courses. Background variables: basic characteristics/ residence/ household characteristics/ occupation/employment/ education/ social class/ religion/ consumption of durables