For a 3-D television viewing experience to be maximally realistic, it needs to be autostereoscopic (requiring no glasses), and present not just two-view stereopsis but continuous parallax and other perceptual cues to depth such as visual accommodation (focusing). The display technology most likely to able to offer these features to consumers is holographic television. In this presentation I describe the principles behind diffractive 3-D displays, review the history of holo-video, examine relevant developments in standards and technology (in particular the application of off-the-shelf graphics processors for holographic displays), and connect these with work at the MIT Media Laboratory in developing a holo-video display suitable for consumer use.