tending to increase knowledge or dissipate ignorance, Providing information; especially, providing useful or interesting information, Serving to inform; providing or disclosing information; instructive

Consisting of, concerning, or based on documents, of, related to, or based on documents, relating to or consisting of or derived from documents, noun_ a film or TV program presenting the facts about a person or event, A work, such as a film or television program, presenting political, social, or historical subject matter in a factual and informative manner and often consisting of actual news films or interviews accompanied by narration