Question:

What should I do if I see a rolling line on my RF (cable) input?

Answer:

First, turn off other devices that might cause interference, like DVD players, microwaves, and air conditioners. Then, check if the rolling line happens on all channels or just some. If it's on all channels, you might be losing signal from your service provider or having issues with your cables or splitters. Contact them to fix the signal strength or replace the cables/splitters. If the problem still isn't solved, your TV needs repair.

Terms:

Rolling line - A horizontal line that moves up or down the screen, indicating a potential issue with the signal.

RF input - The Radio Freguency input, usually connected to a cable source.

Signal loss - Loss of signal strength from the service provider or issues with internal cabling.

Cable splitters - Devices used to divide a single cable feed into multiple outputs.

Service provider - The company responsible for providing the cable or satellite television service.