A television production system 300 affords simplification over the automation of a television program such as a news program by parameterizing State Memory Objects (S-MEMs), each defining one or more operations for execution by one or more production devices. The S-MEMs are typically parameterized in accordance with the scenes they generate. Thus, the S-MEMs can be categorized by style, that is to say, by the “look” or appearance of the associated scene. In this way, a director can more easily select among available S-MEMs to choose those that maintain a particular appearance for a succession of scenes.