Radio Hosts and television announcers talk to audiences over the airwaves, usually reading from scripted information, commercials or announcements. TV announcers do not handle technical duties, but radio hosts may operate consoles, announce music, play commercials, station breaks, public service announcements, and interact with audience call-ins.Both professions may introduce and interview guests. They may research backround information and, prepare for interviews. They may broadcast on location to give weather reports, sports commentary, or news reports.Most stations operate 24 hours, 7 days per week. Newer personnel often work late nights or weekends.