An exerpt from the Multiple sub-Nyquist sampling encoding article, under Cultural and geopolitical impacts:

One could say that without Hi-Vision, there would be no modern digital HDTV. There is some latent truth in this, but you must look back in time 20 years when Japan was the world’s “consumer electronics research heaven”.

I am a passionate Wikipedia article creator, contributor, template code writer and defender, but… I guess we can all afford a little downtime ;D