How do I fix my insignia tv that turns on but then shuts off but you can steel hear it when the screen goes off?

If your Insignia TV turns on but the screen goes off while still producing sound, it may be experiencing a backlight issue. First, try performing a hard reset by unplugging the TV for about 10 minutes, then plugging it back in. If the problem persists, check the settings for any energy-saving features that might be affecting the display. If none of these steps work, consider contacting Insignia support or a professional technician for further diagnosis.