The cultivation theory overview page is up, this give a brief overview of what the theory posits and the associated ideas, up soon I’ll be adding theory criticisms as well.
You can read all about cultivation theory here.
Originally proposed by Gerbner & Gross (1976 – Living with television: The violence profile. Journal of Communication, 26, 76.) Cultivation theory states that high frequency viewers of television are more susceptible to media messages and the belief that they are real and valid. Heavy viewers are exposed to more violence and therefore are effected by the Mean World Syndrome, the belief that the world is a far worse and dangerous place then it actually is.
She's been watching too much TV
According to the article the heavy viewing of television is creating a homogeneous and fearful populace. If one were to count the number of studies done on TV violence and its effect on viewers you would be reading articles when the Republicans take back the White House and long after. It is by far one of the most studied topics in mass comm research. Why you ask? Because it is one of the most hot button issues within society. And guess what they have learned? That results are inconclusive. Apparently with more information comes less clarity. No one really knows how or even if violence on TV or in film negatively or positively affects its views. They think they know, but you’ll get different answers depending on who you talk to.
Mass Communication Theory 