Earlier quoted context omitted.
Skeptoid has a nice episode on number stations and also “The Buzzer” including audio samples: http://skeptoid.com/episodes/4107
Sorry, but I have to be skeptical about any show that declares itself skeptical. Skepticism isn't good science or good logic; it's just reverse religion. True science does not immediately believe or disbelieve. It investigates dispassionately.
You may not like the label they chose for themselves, but that's exactly what the skeptical movement advocates! (skeptoid included)