Through paradigmatic application of geological constructs, I demonstrate the utility of applying the erosion metaphor to questions related to the transcultural impact of television. I explore four specific processes associated with such erosion: cultural abrasion, resulting from friction between the contrasting values reflected in a cultural terrain and a foreign media agent; cultural deflation, whereby least consolidated facets within a culture are most vulnerable to foreign influence; cultural deposition, in which foreign beliefs, practices, and artifacts supplement a cultural landscape potentially providing for cross-cultural fertilization; and cultural saltation, where social practices may appropriate communication systems in response to the perceived threat of a foreign media agent. The metaphor provides a framework to reinterpret earlier findings and to contextualize experiences of cultures under threat.The attempt to understand the transcultural impact associated with television has largely been framed by two metaphors. One asserts that media systems act as vehicles for cultural imperialism. The other explores how audience "readings" of media "texts" help shape social realities. Although the former metaphor has helped articulate the fears of cultures that perceive themselves under threat, it has failed to give adequate attention to factors within cultures that influence media impact. The latter metaphor, in contrast, has given rise to rich analyses of cultural systems, but the active role that audiences play in shaping social realities has drawn attention away from perceived threats by media agents.There is power in such metaphors. Not only do they help shape our discourse, they provide new intellectual vistas focusing attention on distinct facets of the perplexities of life. Although they cannot reduce all complexity to the simple models that ensue, they have contributed greatly to our ability for grasping abstractions (part of what Lévi-Strauss, 1969, called the "logic of the concrete").