This paper describes the evolution of the Children's Television Workshop, which was originally suggested in a study made by Joan Ganz Cooney for the Carnegie Corporation, and which was responsible for the development and production of the daily, 1-hour educational program, "Sesame Street:" As envisioned in the Carnegie proposal, the program was to combine entertainment value with solid educational matter. The target audience was to be inner-city disadvantaged children from 3 to 5 years of age. Briefly outlined in this overview are instructional goals, pre-production research and planning, funding, methods of evaluation, future plans, and general conclusions of the first-year evaluation report submitted by the Educational Testing Service. (NH)