As a follow-up to a 1970 study, interviews were conducted in 1971 in four ghetto communities (Bedford Stuyvesant, East Harlem, Chicago, and Washington, D.C.) to determine the extent to which Sesame Street was reaching preschool age children as compared to the previous year. The program's success was demonstrated by continued growth in audience, high frequency of viewing, and recognition of the program's contribution by ghetto mothers. While availability of the program on commercial television made penetration easier, Sesame Street was a powerful enough attraction to draw a large audience using only UHF and educational outlets. Early morning weekday hours attracted the most preschool viewers, but afternoons and weekends attracted school-aged children as well. (Author/PF)