doesn't 3d requies 100hz or something minimum anyway?
what you're looking for is "input lag". they do tests for TVs. the less the better. for comprehension: 16ms = 1 frame delay. 1 frame = 1/60 second [so 60 frames = 1 second]. ideally you want a sub 1 frame TV for fast paced games that require reaction, Fighting Games, Fast Shooter etc for other games it's not as important. Most tvs have a Game or PC mode that usually reduces all the crap stuff the TV forces you to endure which makes the quality smoother and finer etc, which results in less input lag for that mode.
Input lag is very important if you want a gaming TV; that is individual for every TV tho.
Look friend, there is no such thing as a gaming tv and input lag is subjective. There is no standard for testing it and everyone will experience it differently. The closest you will get is the input lag wars thread on avs, but I'd even take that with a grain of salt due to the aforementioned subjectivity.
So to sum up: input lag shouldn't be a factor in deciding on a display, but if it does really matter to you, take the model number in question over to the thread I mentioned on avs.
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