* Year it aired: When did you see this movie?
* Any other plot points: What other things happened in the movie? Did the disturbed girl have any specific powers or abilities? Were there any other characters besides her and her mother?
* Anything about the setting: Was it set in a contemporary time period, or something else? Where did the story take place?
* Any specific scenes you remember: Do you remember any scenes with mirrors, or any other particularly vivid details?
The more information you can provide, the better chance we have of identifying the movie!