I just got my tv's and had an issue connecting them all together. Within the same day, the seller remotely helped me properly connect all of them and it look GREAT...! I honestly was very nervous to purchase on Alibaba. it was my first time, and i can speak for this company. They were super helpful. and honestly I regret not getting 5 or 6 of these tv's instead of four. So far out the box. they are AMAZING.