Have TV Questions? Ask a TV Technician
Hello, My name is ***** ***** I'll be assisting you. I'm 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 AND the TV from power (unplug their power cords).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) Press and hold the power button on the TV itself (not the remote) for 10 full seconds while the set is unplugged, then release the power button.4) Plug the cable box AND the TV back into power, then turn the TV on and attempt to watch a program.
Also, the power button is located on the rear lower left corner of the TV if you cannot find it.
Additionally, since your TV apps have sound and the cable programming does not, then we directly know that the issue is with your cable box - and NOT your TV. So if the issue persists beyond those steps then you would need to contact the cable provider and have them swap out your cable box.
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