Three general models of the relationship between television viewing and aggressiveness are described: the Facilitation Model, featuring learning or legitimization of aggression from television violence; the Catharsis Model, or the reduction of innate aggressive drives through vicarious participation in television violence; and the Arousal Model, which considers television programming as an agent of arousal, generating a drive toward activity, with the nature of the activity determined by situational factors. The Arousal Model is further discriminated into an Emotional Arousal Model, in which the agent of arousal is emotional reaction to violent content, and the Form Arousal Model, in which arousal is a result of the cognitive effort involved in decoding programming. The Facilitation, Catharsis, and Form Arousal Models are contrasted on a sample of 597 adolescents. The results indicate independent Facilitation and Form Arousal processes occur. A rather startling result is the finding that levels of aggressiveness can be predicted as well by examining only the form of programming as they can by examining only the violent content. Age and sex differences are associated with different strengths of Facilitation and/or Form Arousal effects, indicating possible socialization or maturation processes affecting the response of adolescents to programming.