Prebroadcasts

Prebroadcasts are the materials and activities prepared or released before an scheduled broadcast. The term covers both the preparatory steps taken by production teams and any content distributed ahead of air, such as preview clips, promotional teasers, advance copies provided to affiliates or streaming platforms, and informational notices about the upcoming program. Prebroadcasts are commonly used in television, radio, and online media to align teams and build anticipation while ensuring accuracy and compliance before transmission.

In production, prebroadcasts involve a set of technical and editorial checks. Technical readiness includes signal integrity, audio and video quality, captioning, clocking and timing of segments, slate verification, and the final rundown review. Editorial and legal checks cover content clearance, rights for music and third-party material, disclosures or sponsorships, and adherence to broadcasting standards and those of partner networks. On-air rehearsals or dry runs may be conducted to verify transitions, cues, and the operation of automation systems.

In practice, prebroadcasts help reduce on-air errors, ensure compliance, and coordinate distribution to affiliates, platforms, or simulcast partners. They may also serve as early-release materials to generate interest or provide context for upcoming programs. However, premature disclosure can risk spoilers or leaks, and strict access controls are often maintained to protect sensitive content until air.

See also: preproduction, broadcast delay, teaser, promo, test pattern.