Teaching via Interactive Television (ITV) is more than pushing a few buttons. Existing courses taught in the traditional lecture-based format must be modified in order to be effective via ITV. Visual literacy and guidelines which support visual literacy are critical to the success and effectiveness of an ITV course. This paper addresses visual literacy; general instructional design guidelines for materials; and specific guidelines for the creation of transparencies, copystand materials, and computer-delivered presentations intended to be used with a two-way ITV system. (Author/AEF)