The Samsung displayed an annoying issue with a ghost image that showed up around the edges of objects, caused by some of the left frame getting into the right eye and vice versa (the technical term is crosstalk). Indeed, the Panasonic actually had the same issue, but to a much lesser degree. It isn't yet clear if this phenomenon is caused by a slight mismatch between the timing of the frames on the screen and the shutters on the glasses, or by a lag in the response time of the LCD screen that the Samsung uses. Plasma displays like the Panasonic TC-P50VT20 can react much faster than an LCD, so the screen can show the two images with much less interference between the two. Whatever the cause, it is very irritating and distracting.