It doesn't matter how many arguments are made that the LG Passive technology gives full 1080p 3D. The fact of the matter is that I see the black horizontal lines when I view it, unless I stand really far back away from it, far enough back that the 3D becomes sometimes too great. (Per the user manual, LG lets you adjust the 3D depth and viewpoint, which may help with this: • 3D Depth : Adjust 3D depth between the foreground object(s) and the background. • 3D Viewpoint : 3D image can be made closer or farther from user.)
I don't see those lines on the active-shutter 3D TVs. That said, I prefer the 3D image on the LG to the active-shutter TVs - it's not just brighter (because the glasses aren't as dark, nor do they electronically darken), but also looks better, at least for the demo scenes, and possibly the lack of flicker helps. Having lived with a 50" LCD RPTV for 8 years, we would want the 65" LG, but that means the lines would be even more pronounced at our regular sitting distance than on the 55" TV when viewing 3D.
But it appears that neither LG nor anyone else with passive 3D is going to double the horizontal lines anytime soon on 3D HD TVs, except for the soon-coming-but-probably-way-too-expensive 4K TVs (Sony's is $25K list price! http://store.sony.com/c/S_4KTV/en/c/S_4KTV
- total stupid purchase IMO; wait for 8K if you're going to pay that much) - plus, 84" would probably be too large for what we want, so the only passive one I see 60" or larger that might sell for under $3K is LG's (I don't want the cinema-wide TVs). We may have to settle for the 65" LG and just live with lines when watching 3D.
Or get the 70" Aquos active-shutter.