What is a teleprompter used for during a broadcast?

A teleprompter is used during a broadcast primarily to provide a script for the talent. This device displays the text that the presenter is meant to read, allowing them to maintain eye contact with the camera while delivering their lines smoothly. This is particularly important in television production, where timing and clarity are essential for effective communication. By using a teleprompter, anchors and hosts can convey information accurately and confidently, which enhances the overall quality of the broadcast.

The other functions mentioned in the choices, such as managing sound levels, enhancing video effects, or controlling camera angles, are handled by different equipment or roles within the production team, demonstrating that while they are crucial aspects of broadcasting, they are not the purpose of a teleprompter.