That's frustrating! If your TV won't stay off, it could be due to:
1. Faulty power button or remote control.
2. Incorrect settings: Check if the TV is set to "Instant On" or "Quick Start" mode.
3. Timer or scheduler: Check if a timer or scheduler is set to turn the TV back on.
4. HDMI-CEC: If connected to a device via HDMI, the TV might be turning back on due to HDMI-CEC settings.
5. Faulty circuit board or component: A malfunctioning component could be causing the TV to turn back on.
6. Software issue: A software bug or glitch might be causing the TV to malfunction.
Try:
1. Unplugging the TV from power for 30 seconds.
2. Disabling "Instant On" or "Quick Start" mode.
3. Checking and disabling any timers or schedulers.
4. Disconnecting HDMI devices and testing.
5. Resetting the TV to its factory settings.
6. Updating the TV's software.
If none of these steps work, it might be a more serious issue requiring professional assistance.