Facing TV Problems? Ask a TV Technician.
Hello, I'm Shahid and will be happy to assist you. I need additional info to troubleshoot the issue. - What video devices/ sources (such as cable box DVD player etc) are connected to TV and does the problem occur on all video input sources?
OK, so TV gets local channels signal through antenna, is this correct?
Can you try a DVD player on TV as a test to see if wide black line still appears?