[custom_adv] Speak or read from scripted materials, such as news reports or commercial messages, on radio, television, or other communications media. May play and queue music, announce artist or title of performance, identify station, or interview guests. [custom_adv] Radio and television announcers perform a variety of tasks on and off the air. They announce station program information, such as program schedules and station breaks for commercials, or public-service information, and they introduce and close programs. [custom_adv] Announcers read prepared scripts or make ad-lib commentary on the air as they present news, sports, the weather, the time, and commercials. If a written script is required, they may do the research and writing. [custom_adv] Announcers also interview guests and moderate panels or discussions. Some provide commentary for the audience during sporting events, at parades, and on other occasions. Announcers often are well known to radio and television audiences and may make promotional appearances and do remote broadcasts for their stations. [custom_adv] Announcers at smaller stations may have more off-air duties as well. They may operate the control board, monitor the transmitter, sell commercial time to advertisers, keep a log of the station's daily programming, and produce advertisements and other recorded material. [custom_adv] At many radio stations, announcers do much of the work previously performed by editors and broadcast technicians, such as operating the control board, which is used to broadcast programming, commercials, and public-service announcements according to the station's schedule. Public radio and television announcers also are involved in station fundraising efforts. [custom_adv] Announcers frequently participate in community activities. Sports announcers, for example, may serve as masters of ceremony at sports club banquets or may greet customers at openings of sporting-goods stores. [custom_adv] Radio announcers who broadcast music often are called disc jockeys (DJs). Some DJs specialize in one kind of music, announcing selections as they air them. Most DJs do not select much of the music they play (although they often did so in the past); instead, they follow schedules of commercials, talk, and music provided to them by management. While on the air, DJs comment on the music, weather, and traffic.