The document discusses the effectiveness of combining a documentary with ancillary texts such as a radio trailer and TV listing. It aimed to maintain tone and style across products to promote the documentary. The radio trailer used audio clips and music from the documentary to match its serious, informative tone. The TV listing featured photos and expert quotes from the documentary. While the products established a clear identity and brand, the document concludes they could have been more appealing and effective at promoting the documentary if less focus was placed on continuity between products.