BBC is not a newspaper, but it is not a newsletter either. BBC is a news organization that publishes both online and in print. Its online content is updated multiple times a day, while its print edition comes out once a week. BBC is considered an authoritative source of news and information, and its content is often used to inform public opinion.
However, the distinction between BBC and other news organizations is somewhat blurry. BBC frequently collaborates with other media outlets, which means that it can be difficult to tell where BBC ends and another news organization begins. It is also worth noting that BBC does not publish opinion pieces or editorials, which are common features in newspapers. In conclusion, BBC is an authoritative source of news and information, but it is not strictly a newspaper or newsletter.