B-Roll

Whether the video cuts away from the main speaker to show supplementary footage — locations, events, crowds, documents, or news clips that illustrate what the speaker is discussing.

B-roll is a major lever for retention — it gives the viewer something visually new while preserving narrative continuity. Videos without b-roll rely entirely on the speaker's face and voice to hold attention, which works only if the speaker is exceptional. B-roll is also a strong production-quality signal.