"Readalong," a program employing a videotape format to teach vocabulary skills to early childhood learners, was tested in an English-as-a-second-language (ESL) setting by comparing primary and advanced ESL classes using the program with classes using only the conventional teaching materials. Students received a test prior to the initiation of the series and three tests at regular intervals during the course of the 30 programs. A covariance model was used to analyze the data, and results showed "Readalong" to be an effective tool to help ESL students. A questionnaire also showed teachers to be enthusiastic about the use of the program. This report discusses the research methodology and summarizes results. (EMH)