The document discusses three theories related to the effects of media violence: 1) Copycat theory suggests that exposure to violent media can indirectly influence criminal behavior as some individuals may imitate violent acts they see portrayed. 2) Desensitization theory proposes that repeated exposure to media violence can make viewers more accepting of real-world violence as the emotional impact lessens. 3) Cultivation theory examines television's long-term influence on attitudes and behaviors, with some concern that violent programming was shaping views in American culture similar to how religion once did.