The document discusses different theories about how audiences interact with and are influenced by media. It describes the uses and gratifications theory, which proposes that audiences actively seek out media to fulfill needs like acquiring information. It also outlines the hypodermic needle theory, where media directly injects ideas into passive audiences. Additionally, it discusses theories about active versus passive audiences, and whether people critically engage with media or just accept messages. Examples provided relate these theories to how documentaries aim to inform audiences and how North Korea controls media seen by its people.