@PrincessTara: If the problem has persisted after unplugging the TV at the wall, waiting for 30 seconds, then plugging it back in, then I recommend getting in touch with the Samsung Support Team in your region via samsung.com > Scroll to the bottom of the page > Contact us, where an advisor will be able to provide further support, and arrange an engineers inspection. I apologise for any inconvenience this may cause you.
