The theme song appears while Dicky Cobb is switching TV channels. Composer Brad Fiedel created the theme music for "Midnight Caller" and "Reasonable Doubts". In addition, Robert Singer was executive producer for both shows.
When Sam and Dean are sitting in the car outside Rosie's family's house, the stereo goes to static. Through the static it says, "This is your host Jack Killian on KJCM 98.3 FM. And goodnight America, wherever you are." You can read this in the official closed captioning subtitles.