The world is much bigger than the USA ....
The samsung 3D system hardware is garbage, for reasons I've outlined in previous posts, but will summaries below.
1) The infrared sensor is at the top of the glasses.
2) Sunlight, incandescent, halogen (non-infrared coated, which is all the cheap ones ), compact fluorescent, fluorescent and metal halide all spit out enough infrared light to impede them from working correctly. Samsung have indicated this is their 3DTV warning, although perhaps they overstated the problem, but understated the brevity of the problem. Apparently compact fluorescent control gear switches at a frequency close enough to the glasses signaling frequency (22KHz) to cause trouble.