Abstract: Apparatus for controlling a formerly passive-display television infrastructure, such as in a single-location commercial establishment, includes a text and graphical information input interface which uploads the text and graphical information, and the control information for its display, to dedicated control modules connected to each television. The apparatus can provide an addressable or a direct-wired ability for the operator to display text and graphics overlaid on an existing television channel at the operator's choice of time, text, and location on the screen. Alternate video source inputs may further be controlled to replace the currently displayed television channel for a selected amount of time.