Imagine waking up with a visual impairment in 1969, fundamentally locked out of the daily printed conversation of the world—no screen readers, no on-demand audio, and no internet. In this episode of pplpod, we conduct a structural archaeology of the Minnesota Radio Talking Book Network, the world’s first initiative to dismantle this informational exile. We deconstruct the technical brilliance of the FM Subcarrier (SCA), analyzing how Robert Watson and a coalition of leaders—including C. Stanley Potter and William Kling—engineered a private, invisible signal to piggyback on standard broadcasts. We unpack the transition from the slow, linear "tape-by-mail" model to a real-time Radio Reading Service, providing a master class in Media Accessibility.  ...