In his work, "Amazing Ourselves to Death", Neil Postman describes a myth as a way of understanding the world that we are not fully conscious of. In other words, it is so deeply embedded into one's consciousness that it is as if were invisible.
Following this definition of "myth", he proceeds to describe television as a "myth" because it does not cause the fascination it did in the early years of his creation but is rather an object that camouflages thorough the scenery of any room in a house.