I woke up one day to see that the screen of my tv was dimmer than usual, even when I changed it to the max capacity it's still less bright than before, but the most important issue that I noticed is that the TV is making a static like sound, and if I change the brightness settings the noise can increase or decrease.
Not only that, but the screen is also like flickering, and it powers off on it's on if I use the tv for a little bit.
What is the issue? what can I do.
My smart tv is a Roku TV Hisense.