Video manipulation have been instances when this technology was used during political campaigns. The proof-of-principle software "Face2Face" was developed at Stanford University. Such advanced video manipulation must be ranked alongside and beyond previous examples of deep fakes. The concept of manipulating video can be traced back as far as the 1950s, when the 2 inch Quadruplex tape used in videotape recorders would be manually cut and spliced. After being coated with ferrofluid, the two ends of tape that were to be joined were painted with a mixture of iron filings and carbon tetrachloride, a toxic and carcinogenic compound to make the tracks
TiVo digital video recorders TiVo digital video recorders TiVo digital video recorders encompass a number of digital video recorder (DVR) models that TiVo Corporation designed. Features may vary, but a common feature is that all of the units listed here require TiVo service and use its operating system. TiVo units have been manufactured by various OEMs, including Philips, Sony, Pioneer, Toshiba, and Humax. Cisco Systems and Samsung joined forces with pay TV Provider Virgin Media (UK-only) to create the Virgin Media TiVo box. The OEMs license the software from TiVo Corporation. To date, there have been six "series" of TiVo units produced, with the