Hello, I’m Nathan, and I’ll be assisting you today. My livelihood depends on your positive feedback, so your satisfaction is my highest priority.
Sorry to hear you’re having trouble.
Can you please have a look at the back of the tv, and determine exactly where the cord coming from the cable box is plugged in at.
That port should be labeled, such as hdmi1, hdmi2, component1, etc.
Then, take your sony tv remote (not the cable remote) and press the Input (source, tv/video, etc) button, repeatedly, to cycle through the input options, until you get to the corresponding port, such as hdmi1 for example.