I can't afford to buy the wrong thing here. Most of the info I find is attached to ads and seems suspect. I've only got 1 chance to buy the right type of 3D TV.\n1. Do you get a much lesser 3D image with a passive 3D TV?\n2. Are the active TV glasses known to cause headaches?\n3. How do you charge them? Is it off of a TV port, if so what if that port breaks? Are there portable charging stations?\nAny info or advice is greatly appreciated! Thanks in advance!