[jledou]

I would assume that the show is on TV would be "criminal minds" a well written and disturbing show that my wife and I watch regularly. I can see where it or others that are similar could lead to something if there is not the correct right/wrong thought process morally programmed into the kid from the beginning.
I would put my money on the parenting though rather than the TV/video games. Spend the time up front to install a proper sense of what is right and what's wrong and they will be able to distinguish between reality and TV/video games.