TV advice adviser announcer annunciator authority automation avionics box broadcast journalism channel communicant communicator electron microscopy electron optics electron physics electronic engineering electronics electrophysics enlightener expert witness gossipmonger grapevine informant information information center information medium informer intelligence interviewee journalism line radio monitor mouthpiece news news agency news medium news service newsiness newsletter newsmagazine newsmonger newspaper newsworthiness notifier photoelectricity press press association public relations officer publisher radar radio radionics radiophotography radiotelegraphy radiotelephony reportage reporter source spokesman telegraph agency teller telly the fourth estate the press tidings tipster tout transistor physics tube wire service wire wave communication wired radio wired wireless wireless wireless telegraphy wireless telephony witness word