High school media program services, resources required for program establishment, and program impact on student skills and attitudes were examined in 15 Calgary senior high schools with emphasis on the effect of the audiovisual (AV) component. A student questionnaire was used with two 12th grade classes in each school to determine attitudes or behaviors concerning the media center. The Liesener Inventory was used to catalog media center services provided, and site visits obtained impressions of library arrangement and organization from students, teachers, and media-center staff. Access, instruction, and reference services were common to almost all centers. Presence of the audiovisual component was influenced by school teaching and organizational models. Existence of the AV component was associated with students valuing and extensively using the library program. The findings have implications for individuals concerned with student learning styles, provision for models of teaching, and curriculum implementation. This report includes 29 references. (LMM)