Facing TV Problems? Ask a TV Technician.
Hello and sorry you're having problems.
By far the most common cause of this problem, is a glitch in the cable box processing.
Please follow the steps below:
1) Shut the TV off, and then disconnect the cable/SAT box from power.
2) If using an HDMI cable, disconnect and reconnect the HDMI cable on both ends when the cable box is unplugged from power (make sure it's secure on both ends).
3) Plug the cable box back into power, and once it's rebooted, turn the TV on and attempt to watch a program.
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Unplug your TV from power then press and hold the power button on the TV itself (not the remote) for 10 seconds and release. Wait a full minute and plug the TV back in then turn it on. Let me know if you have the same problem.