3DS can do stereoscopic 3D without the need for glasses. Why can't the same tech be used in TVs? Well, it can, says Nintendo big man Satoru Iwata, but it doesn't suit the living room as well.
The main reason for this is the need to view the screen from a certain sweet spot. "With this parallax barrier technology, the LCD must be a certain distance away from the screen. It also needs a certain viewing angle. We think it is not a great match for the home TV set," says Iwata.
This isn't a problem for the 3DS because that sweet spot range is where you'd comfortably hold the DS in front of you anyway. And being a portable means the screen goes where you go, and only you need to see it - not multiple people sitting in different places.
Don't lose hope though, spec-haters. Iwata went on to add: "As one of the engineers, I can anticipate that someone will invent a 3D TV that does not require you to wear 3D glasses. As far as today is concerned I do not think they can do it well. We need an invention to make it happen. If you ask me when, I have no idea."
Read our Nintendo 3DS review here.