The cultural industry is undergoing significant changes across all areas—production, distribution, and consumption—under the influence of digital technology. In particular, IPTV (Internet Protocol TV), scheduled for commercial deployment in the second half of 2008, is a service that transmits video content using broadband and is expected to accelerate the convergence of the broadcasting and telecommunications industries. Since structural changes in the broadcasting and telecommunications industries—which serve as infrastructure industries for the national economy, society, and culture—have enormous ripple effects across industries and society as a whole, forecasting these changes and establishing response strategies constitutes a critically important task. In this study, using Scenario Network Mapping (SNM), a future forecasting methodology, the broadcasting-telecommunications convergence industry was projected to progress through network openness, content openness, sponsor openness, and platform openness toward device openness. Furthermore, at each stage, the strategies that content, platform, network, and device operators should adopt, along with corresponding government policies, were presented.