Wait Until Dark The Listener “Foggy Notion” Thursdays, NBC, 10 PM Written by Jeremy Boxen Directed by Clement Virgo Television being primarily a visual medium, it’s interesting when a show attempts to tell a story in a non-visual manner. In this episode of The Listener, it becomes even more difficult than usual for Toby to follow a case: the subject is a blind girl, and her thoughts and memories are confusing to a sighted man. Toby’s already a more sensitive guy than most, but now he has to really tune in to sort out what’s going on, and that can lead…