Vertical banding Samsung tv

[VBGCGGGSG18]

I have a Samsung and have vertical banding/discoloration or blue lines on both sides of the tv.
Any suggestions how to fix it without opening the TV? Thanks

 

[hang-the-9]

Is this on all signals? What model of TV? Did you try resetting the set to stock settings? Very likely it's a physical issue with the TV that needs parts replaced or just replace the TV.