Jelani Williams, Start by doing this: Dim the lights in the room and shine a fairly powerful flashlight at an angle towards the screen (from up close). Do this while there should be an image on the screen.
If you can see shapes and/or shadows, you know you have a backlight issue and we can further find out if it’s the backlight strips themselves or if it’s the driver circuit.
You could also take the back cover off the TV, after disconnecting the power and pressing the power button for 30 seconds. Be careful though, as there are still some high voltage capacitors in there that could hold a charge.
Take some good quality and up close pictures of the boards, then add them to your questions. [guide|21499|Adding images to existing questions].