This document explores the potential involvement of public broadcasting in interactive videodisc. It includes a survey of current videodisc uses in entertainment, publishing, marketing, training, and education. Individual chapters focus on each of the market segments in terms of historical growth, present growth, and likely future growth, with special emphasis on the potential each segment holds for interactive videodisc applications. Factors likely to influence videodisc success in these applications are identified and evaluated, and a projection is made of the share of software expenditures in each market segment that interactive videodisc has the potential to capture. Case studies provide insights into decision and implementation processes for each application. Additional chapters analyze the current structure of the videodisc industry based on extensive interviews with industry participants as well as basic research. Recommendations for strengthening the position of public broadcasting in the videodisc industry include both objectives and strategic approaches for achieving them. An appendix presents information on government training expenditures. (LMM)