Electronics Repair Questions? Ask an Electronics Technician
Hi, I'm Nathan.Sorry to hear that you're having trouble with this but I'll do my best to help you.
Can you please take a look at the back of the tv and tell me exactly where you see the cord plugged into the tv which is coming from the cable box, for example hdmi1, hdmi2, hdmi3, etc?
I've also sent an optional phone support offer at your request. If you prefer we can continue here in the chat format as well. Just let me know either way.