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. 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.