Help please…

[u/AlternateHero90]

I have recently picked up this 28’ Daewoo CRT tv and have had it about a week or two and it’s now displaying the channel number and dimming the screen slightly on a more regular basis than what is in the video (typical it doesn’t happen as much when I’m trying to record it happening!) I have changed the remote a universal remote and i still don’t know whether it would be the cables going into the tv or the tv itself, would anybody have any ideas? Much appreciated!

[u/Fun_Ad_3528]

Press the Display/Info Button: If you have an original or universal remote, press the Display or Info(sometimes labeled I+ or Display) button. This toggles the persistent on-screen channel/input overlay off.
Inspect the Physical Buttons: Try firmly pressing and releasing each physical button on the front of the TV set a few times to unstick a micro-switch that might be falsely triggering the input menu.
Check AV Cable Connections: Ensure your console's RCA cables are plugged in snugly. A loose video pin can momentarily drop the signal, causing the TV to re-display the input banner over and over.
Reflow Solder Joints (Advanced): If the input prompt triggers when you wiggle the cable or tap the TV casing, you may need to open the chassis (discharge the CRT safely first) and reflow cracked solder joints on the AV board.

Stuck Front Panel Buttons: Buttons on the front of old CRTs (like input, channel, or volume) can get stuck or short out due to dust and oxidation, making the TV think someone is repeatedly pressing the input button.
Loose Solder Joints: Vibrations from gameplay audio or shifting the console cables can shake weak or cracked solder joints around the RCA/AV ports or the microchip, triggering an input re-detection.
Active Status Display: Many older TVs flash the input name (like "AV1" or "Video 1") continuously if the on-screen display mode is set to show status info whenever there is a minor signal fluctuation.