Poltergeist

Steven and Diane Freeling live a quiet life in an Orange County, California planned community called Cuesta Verde, where Steven is a successful real estate developer and Diane looks after their children Dana, Robbie, and Carol Anne. Carol Anne awakens one night and begins conversing with the family's television set, which is displaying static following a sign-off. The following night, while the Freelings sleep, Carol Anne fixates on the television set as it transmits static again. Suddenly, a ghostly white hand emerges from the television, followed by a violent earthquake. As the shaking subsides, Carol Anne announces "They're here".

Bizarre events occur the following day: a drinking glass of milk spontaneously breaks, silverware bends and furniture moves of its own accord. The phenomena seem benign at first, but quickly begin to intensify. That night, a gnarled backyard tree comes alive and grabs Robbie through the bedroom window. While Steven rescues Robbie, Carol Anne is sucked through a portal in her closet. The Freelings realize she has been taken when they hear her voice emanating from the television set that is tuned to an empty channel. Read more on Wikipedia.