Today I installed my RCA 50" QLED UHD 4K Smart TV, Android.
Scanning the channels, it does not find the digital channels, only analogue. It is on cable. The Internet functions well. When I tried to connect to another TV on the same input, this TV found every channel as normal. What can be wrong, and can it be corrected?
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Not much to go on here but it sounds like you have it set to the wrong source. When you say cable are you using a cable box or is the cable coax directly plugged into the TV? If it's a cable box then you should use the HDMI connection with an HDMI cable and use the box to change channels. If it is a cable directly connected with coax then you should use TV or antenna as your source.
With a direct connection you probably won't get 1080p HD or 4K UHD pictures, most likely 720p, since that usually requires a cable box and an upgrade tier.
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