The document discusses the effectiveness of combining a documentary with ancillary texts like a radio advertisement. It notes that using the same narrator and voice helped create consistency and allowed the audience to associate the different products. However, one part of the documentary lacked evidence to fully support the narrator's statement. The radio advertisement used clips and music from the documentary to entice listeners. Consistent text was also used across the documentary and print advertisement to further associate the products. The print ad was similarly formatted to Channel 4 ads to appeal to younger audiences. Overall, maintaining consistency across products through narration, music, clips and text helps create an identity and guide the audience.