Comparing the Nintendo 3DS with 3D HDTVs in general is an apples and oranges argument.
It's basically arguing whether those who would pay for a 3D experience would rather watch it in their living rooms on a 40" display like a regular TV, or a sub 4" screen in their hands.
Glasses or no, the portable experience does not replace the living room experience. As much as I was impressed with the 3DS, I feel it was pretty pointless for Nintendo to even make the comparison. It's like saying why watch Avatar in 3D in an IMAX theater when you can watch it on a 3.5" screen instead (no glasses!!!).
As for these wish/claims that Nintendo can or will show the world how glasses free 3D is done in the living room; you can stop. As it's already been mentioned, Nintendo doesn't make TVs. They don't even make the 3D displays that make the 3DS possible.
