 Such multiple views can be created on the fly using the 2D-plus-depth format.Various other display techniques have been described, such as holography, volumetric display, and the Pulfrich effect, which was used in "Doctor Who" Dimensions in Time, in 1993, by "3rd Rock From The Sun" in 1997, and by the Discovery Channel's "Shark Week" in 2000.Stereoscopy is the most widely accepted method for capturing and delivering 3D video.