In Friedrich Kittler’s media theory, “media” tend to transform people into their cultural prostheses. Although the cultural prostheses of people appear in different forms and function differently across historical periods, they all serve as auxiliary instruments that can enhance media sustainability, development, and evolution. This paper interprets this peculiar human–media relation by using the psychoanalytical concept of the “uncanny.” This paper conceptualizes Kittler’s writings on media history as an uncanny mythography of the media. Through this mythographic lens, the continuity among the three media discourse networks of the 1800s, 1900s, and 2000s is detected. This is an uncanny continuity in which people were constructed and used in the 1800s, torn down and devoured in 1900s, and finally abandoned in the 2000s, all at the hands of the media discourse networks.