What is the model number / Refresh rate / Price on that LG ?
Regarding returns, I have never done a return on such a big item for an online but it seems that a return to a big-box store is more of a pain because you have to schlep the thing down there yourself and do the transaction in person. With a quality online-order place, you use the phone and just put the TV in the box and have them pick it up. Probalby takes longer to get the transaction done, but takes less of your time and energy ?