3D

"3D", occasionally spelled "3-D", was an undefined trait that Martha Jones, in 6012, attributed to a three-dimensional map on Messaline. (TV: The Doctor's Daughter)

By the early 21st century, televisions were capable of 3D broadcasting. (PROSE: Cat's Cradle: Warhead) A revolutionary camera developed by ElysiuMatics in 2007 was capable of taking 3D holographic images that appeared alongside text in newspapers. (PROSE: Iceberg) By 2109, most children had access to graphic programs, on which they would create things like trains with basic three-dimensional shapes like cones and cylinders. (PROSE: Transit)

As of the 27th century, some "vidgames" were in 3D; a hostess once offered the Tenth Doctor a "modem link for 3D vidgames." (TV: Midnight) By 4123, tickets were in 3D as well; Solana Mercurio once gave visitors to the Ood Sphere what she referred to as "3D tickets." (TV: Planet of the Ood)

Living Vision 3DTVs designed and marketed by Walter J. Matheson III were in 99% of the homes of 101st century New Earth Republic. They looked like flat discs, and displayed images in the air much like a hologram. The TVs functioned by "extruding plastic" to display three-dimensional television programmes. (PROSE: Synthespians)

The Tenth Doctor used a pair of 3D glasses when observing the effects the Void had on people and objects. (TV: Doomsday)

Behind the scenes
A trailer for the fifth series of Doctor Who was released in 3D, in cinemas and on YouTube, on 20 February 2010.