simulcast vs transmission

simulcast

noun
  • A program or event that is broadcast across more than one medium or service at the same time. 

verb
  • To broadcast a program or event across more than one medium or service at the same time. 

transmission

noun
  • Something that is transmitted, such as a message, picture, or a disease; the sending of such a thing. 

  • The fact of being transmitted. 

  • An assembly of gears through which power is transmitted from the engine to the driveshaft in a motor car / automobile; a gearbox. 

  • The passage of a nerve impulse across synapses. 

  • The passing of a communicable disease from an infected host individual or group to a conspecific individual or group. 

  • The right possessed by an heir or legatee of transmitting to his successor(s) any inheritance, legacy, right, or privilege, to which he is entitled, even if he should die without enjoying or exercising it. 

  • The act of transmitting, e.g. data or electric power. 

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