AFTRA, DJ, MC, adviser, ancestor, anchor, anchor man, anchorman, annunciator, antecedent, authority, avant-garde, bellman, bellwether, broadcaster, buccinator, buccinator novi temporis, bushwhacker, channel, commentator, communicant, communicator, crier, disk jockey, emcee, enlightener, enunciator, expert witness, explorer, forebear, foregoer, forerunner, foreshadower, front runner, frontiersman, fugleman, gossipmonger, grapevine, groundbreaker, guide, harbinger, herald, informant, information center, information medium, informer, innovator, interviewee, lead runner, leader, master of ceremonies, messenger, monitor, mouthpiece, news commentator, newscaster, newsmonger, notifier, nunciate, pathfinder, pioneer, point, precedent, precursor, predecessor, premonitor, presager, presenter, press, proclaimer, program director, programmer, public relations officer, publisher, radio, radiobroadcaster, reporter, scout, sound-effects man, source, spokesman, sportscaster, stormy petrel, television, teller, tipster, tout, town crier, trailblazer, trailbreaker, vanguard, vaunt-courier, voortrekker, weatherman, witness