What Is Ultra HD (4K)?

November 19, 2012, 07:45 PM

http://www.pcmag.com/article2/0,2817,2412174,00.as...

Just when you thought it was safe to buy a 1080p HDTV, along comes another new video format. In fact, you may have even seen a "4K" logo in movie theaters lately. But what exactly does 4K mean (aside from the stock memory in a Radio Shack TRS-80, for the aging geeks like me in the audience)? Is 4K—now known officially as Ultra HD—something you can get today, or at least soon enough that you should hold off on buying, say, an HDTV or Blu-ray player? Is it something you'd even want?

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