Okay I had to post this. I contacted LG through chat wanting to know if there were differences between the 7600 and 8600 that we didn't know. Ie. different tuner, different upscaler, etc. So here is my conversation:
Guest: Can you tell me the main differences between the 55LM8600 and the 55LM7600?
CS Rep: I will be more than happy to check that for you
CS Rep: there both the same unit only that different in model
CS Rep: They both have same specs
So I guess there was no point to pay the extra money if they have the same specs?