The Max Headroom broadcast signal intrusion was a television signal hijacking in Chicago, Illinois, on the evening of November 22, 1987. It is an example of what is known in the television business as broadcast signal intrusion. The intruder was successful in interrupting two television stations within three hours. Neither the hijacker nor the accomplices have ever been found or identified.
Polybius is a supposed arcade game featured in an Internet urban legend. According to the story, the Tempest-style game was released to the public in 1981, and caused its players to go insane, causing them to suffer from intense stress, horrific nightmares, and even suicidal tendencies. A short time after its release, it supposedly disappeared without a trace.
Some secret messages hidden within various songs