Throwing a $20k Ultra HD TV set onto the market when there's no 4K content of any kind in sight is quite the leap of faith, but LG told ChosunBiz (and confirmed to us) that it's already found 300 deep-pocketed videophiles in Korea for its 84-inch 84LM9600 since it went on sale. Judging by CES 2013 the industry is all-in on the tech, so that
