Contributed by Mass Distraction
The original PlayStation is often mistakenly referred to as PSX, while in reality PSX is a totally different system. It is a Sony digital video recorder with a fully integrated PlayStation 2 and was only released in Japan.
Contributed by MikSacred
Sony made a special black PlayStation known as the Net Yaroze that allowed owners to develop games. It cost 750 USD by mail order in 1997 and is no longer available today.
Contributed by EnoRed
A promotional video for the Sony Playstation appeared on a demo disc for the UK Official Playstation Magazine, known simply as "Elightenment". The video is a parody of Chinese Kung Fu movies with a man seeking to advance to "the higher level" being instructed by and old master about various Playstation peripherals. Very little is known about the video's production and it does not appear to have been shown anywhere outside of demo discs.
The console was originally planned as a CD-Drive add on for the Super Nintendo called the SNES-CD. The plan feel through, resulting in the PlayStation's creation and Nintendo doing a deal with Phillips instead.
In the North American commercials for Playstation, Sony hid multiple subliminal messages. The more obvious was "U R NOT E" - you are not ready (red "E"). Some were cheat codes for games, and another was "E NOS LIVES" meaning "Ready ninth of September", revealing the PS1's release date.