PlayStation 9

PS9 was a gaming console popular in the year 2020. When Sally Morgan found Victorian-style dolls in what seemed to be a nursery in Blue Fire House, Rachel McMahon remarked sarcastically, "No PS9s here!" (AUDIO: House of Blue Fire)

Behind the scenes
PS9 is obviously intended to be a future iteration of the Playstation video game console, meaning the console's full name is likely "Playstation 9". At the time the story was made, the was the concurrent Playstation console.