In the process of the formation of modern nation-state, Benedict Anderson privileges the imagining mechanisms of print culture over the visual/media culture, a blind spot this paper seeks to illuminate. To use the most popular television documentary film Heshang (River Elegy) that became viral in mainland China in 1988 as an exemplary televisual hypertext, this paper illustrates the significance of visual/media culture in kindling the popular desire and imagination of a new Post-Mao national identity. This new "mediasphere" not only marks a paradigmatic shift in cognitive knowledge from the print culture to a new era of visual culture, but also reshapes the citizenship subjectivity of a social-cultural imaginary dominated by media/visual images. The paper also attempts to decode the slippery political unconscious desire embedded in this "visually imagined mediapshere."