The movie was either on HBO or Showtime in the late 70’s early 80’s. The parts I remember were it was about a girl that was in a hospital, and she was sneaking around and saw on the other monitors in the nurses station were like 12 other girls that looked just like her.
I cannot remember the name of this movie!!
I think you might be remembering “Anna to the Infinite Power.” It’s been years since I’ve seen it, but I remember a scene similar to what you’re describing.
http://www.imdb.com/title/tt0085169/