One:Holovision

Holovision is an implantable technology that displays three dimensional images across the wearer's field of vision. While originally used by scientists to better visualize experimental data, it got it's first use as an entertainment media during The Arlington Address. It then descended into the panacea of the masses being used to allow users to watch such dross as Flashdance 2 and Dinglebots. After the hacker known as J0k3r3l1t3 released the Holovision Impairment Virus widespread use of the technology tapered off.