Telescreens are two-way video devices that appear in George Orwell's dystopian 1949 novel Nineteen Eighty-Four. Omnipresent and almost never turned off, they are an unavoidable source of propaganda and tools of surveillance.
The concept of the telescreen has been explored as a metaphor or allegory for the erosion of privacy in totalitarian regimes, as well as in the modern era in the context of Internet- and cellular-based devices that allow for the surreptitious collection of individuals' audiovisual data, frequently without their explicit consent or awareness.