Warning, I will tell the outcome of the movie This is to the best of my memory even though I haven't seen it since the premiere. Kate Mulgrew plays a young girl that has suffered a breakdown and is now staying with some family members. Roberts plays the father of the family. One other member is a teen, who I think was a electronics genius, and is very nasty and doesn't like anyone.
Mulgrew starts to see the handsome man is an old television. She knows it is crazy and fears that if she tells someone, they'll think she is having a breakdown. At times, there is a flashing affect and the man's head changes into the head of one of the aliens in the old Outer Limits episode "Keepers of the Purple Twilight." The teen finally tells her that it is they who trained in in electronics because they want him to build a device to bring them in this world. On day, one of them reach through and touched his dog, and it killed his dog. At that point, he knew to fear them. One day the girl hears screaming, she enters the world and sees in the television the teen being dragged off by two of the aliens.
At the last, Roberts is convinced that she is having another breakdown after she tells them about the world in the old television. She runs from them into the room (which I think is in the basement)and locks the door as they pound on it. Strange lights come from under the door and he hears strange noises. He gets in and there she stands with her alien friend. The alien is smiling, and there is the flashing effect, and you see his real face.