A commonly accepted belief is that the violence depicted in television programs, particularly cartoons, has a negative impact on young children's behavior. However, young children may be less inclined to emulate violent actions seen on television than currently thought. Research indicates that young children have limited comprehension of television content but relatively sophisticated moral reasoning. Children's understanding of the immorality of violence on television and the distinction between reality and make-believe may mediate these effects, as may the comic aspect of cartoons they view. We review current research concerning the effects of cartoon violence on children's moral understanding and behavior with the goal of helping early childhood educators and parents make informed decisions about children's television viewing.