Young people's reactions to two prize winning programs of the Prix Jeunesse 1970 were evaluated in seven different countries: Germany, France, Great Britain, Ireland, Norway, United States, and Yugoslavia. This report of the evaluations first overviews the plan of the research, discusses the juries which conferred the prizes, describes the two winning programs--"Man in Metropolis" and "Baff"--and their producers, and then summarizes main features of the results of the studies across all seven countries for each of the two programs. More detailed reports of each of the seven studies comprise the major portion of the booklet. (SH)