Sorry to hear about this. Any chance you could get a video of this behavior?
Last week i bought samsung 7 series tv (un55es7050F). I am facing problem with remote control. When i stream files from my pc or nas .it is playing the file but i cant use remote control to control it .i couldnt even turn it off. simply it is dead. same thing with smarthub apps or videos from youtube or explore 3d. but when i play videos fom directly connected hard drive everything works fine. I put new batteries to remote control nothing works. any suggestions?