[Petra_Kalbrain]

The 120Hz helps, but it also hinders. Like you said, it has the smear effect (which I also refer to as ghosting). It's the actual quality of the Blu-ray transfer that makes it 3D-esque. The sharpness of the image actually gives it a third dimension as the foreground and background images in a scene are much more distinguishable as that line that seperates a shoulder from the trees behind the actor has become increasingly smaller. The elimination of that line, in conjunction with focused foreground and slightly out of focus background, is the ultimate reason behind the 3D effect. This gives the screen image a depth of field that seems to extend beyond the 2 dimensional screen.

The 120Hz is able to further clarify the image, but I'm not a fan because of the ghosting effect. I'm very happy with 1080/24p or 60Hz image, so long as the video codec is blazing along at high transfer rates. It gives the same 3D effect without causing the visual echo/ghosting/smear.

EDIT: You might have to spend some time to make adjustments to your settings. Also, it's usually only the best of the best movies that they show on store demos (often animated films). Also, your TV contrast ratio probably has something to do with the difference between yours and the stores picture quality. If your contrast ratio is smaller, your colours won't maximize and your blacks will be exponentially more flat.