In an attempt to determine a relatively standardized formula for evaluating children's television programs, a concept of flexible and varied means of exploring the characteristics of children's responses to particular programs and styles of programs according to the kinds of questions that each program raises was developed. The ways in which the concept of evaluation was defined are outlined, and the research methods which were evolved for undertaking specific pieces of evaluation are described. An account of three pilot studies which were carried on existing programs is given, along with an estimate of the feasibility and utility of such an evaluation as a means of providing feedback on broadcast output. (JY)