To appear as a performer, presenter, or speaker in a broadcast programme.
To transmit a message or signal through radio waves or electronic means.
To transmit a message over a wide area; specifically, to send an email in a single transmission to a (typically large) number of people.
Cast or scattered widely in all directions; cast abroad.
Communicated, signalled, or transmitted through radio waves or electronic means.
Relating to transmissions of messages or signals through radio waves or electronic means.
A programme (bulletin, documentary, show, etc.) so transmitted.
A transmission of a radio or television programme intended to be received by anyone with a receiver.
Widely in all directions; abroad.
To announce (some information) generally.
To disclose (a secret).