Hi Farris. Sharp has the only 70" 4k set that is out right now. There is a thread on AVS but last time I looked no owners. Chad did a calibration and basically said it was a good set. Vizio is supposed to release a 70" 4k in the first quarter of 2014. The Sharp uses active glasses and the Vizio passive which is my choice. I'm waiting for a set in the 70" range myself and will wait to see what is announced at the 2014 CES.