What is a third-person omniscient narrator?

some one who dpeaks on behalf of the narratoe

Someone should consider the context of a media piece because it is always done by men -or women- who have an intention and it is important in order to understand better the message.

Explanation:

As a written piece, an article, a book, etc. a media piece has been done to transmit the audience a message, to tell the audience something. The work that people do has always a meaning and, because it is done by a person, it contains subjective ideas. We, the audience, have to know the context and should ask questions such as Who is the author? What is he/she trying to tell me with this piece? Why is he/she trying to tell me this? Which was his/her experience? By asking ourselves these questions, we can fully understand the message and think about it and figure it out by ourselves and have our own opinion about the subject.