There are sex differences in aggression. Males commit the majority of violent crimes. Changes in sex role norms over time have not changed this sex difference. However, women are also aggressive. Women are as high as men in reporting that they feel angry.
Women also are physically aggressive against their intimate partners.
We learn how to behave. TV doesn't make all who watch it aggressive. We've learned aggression because it has been rewarding. We learn to respond to stimuli that trigger aggression. We can learn something else instead.