newscaster vs wireman

newscaster

noun
  • One who delivers the news for broadcast on television, radio, etc; a newsreader. 

wireman

noun
  • A person who sets up electronic surveillance. 

  • Someone who works with wire; primarily someone who connects electric wiring. 

How often have the words newscaster and wireman occurred in a corpus of books? (source: Google Ngram Viewer )