- Narrator: [opening narration for "Private Channel"] Modern technology has staged a revolution in the art of isolation. Turn up the volume on your headphones, and the world outside drops away. Sixteen-year-old Keith Barnes has lived in this public seclusion for some time now. But tonight, the tiny radio on which he depends to keep people out is about to start pulling them in, thanks to a very special frequency that can only be picked up... in the Twilight Zone.