Tv screen blacks out sometimes when I walk in front of it, when I google the problem other people have had the same issue. Samsung customer support says I have to prove that it isn't the cable box or the electrical outlet even though the tv i took out worked fine, also a Samsung. They will send out a service tech but if he can't find the problem I will have to pay for the service call. They connected to my tv remotely and saw the problem but still won't take ownership. If they won't support their product then I won't ever buy one again. Sorry Samsung, it's been a really long run but enough is enough