i've recently worked as a tech in a service center, and at least for Samsung TV's, those symptoms are a toss-up between the panel and main board... one possible cause is a video source sending data as a 3D video stream, and the TV interpreting it as a normal 2D signal, or the video is sent as "progressive scan" when it's actually interlaced... some of those hiccups can be due to faulty "handshakes" between the TV and video source... so there can be other problems at work here, and not only a problem with the panel... but to answer the OP, either way, main PCB or panel, if it's not caused by some misconfiguration at the source of the video, it's time to buy a new TV assuming it's out of warranty...