I am awaiting panel replacement on my 7 months old Samsung 6 series.I had the same experience with Samsung TV. My Samsung TV bought in 2013 spending Rs 80,000/- for a 46 inch started problem with screen vertical lines exactly after 1 year warranty and I had to spend again 25 K for replacement. SO total I had spent Rs 1 lakh on a 46 inch TV between 2013 - 2016.
So even good brands fail. No exception
Life time of electronics in India is always like a lottery. You need luck.