Inspect all the tags and stickers to see a date of manufacture. Then use that when you call it in.
I got this about 8-10 months ago and when i switched it on today it now has a grey line down the first 4 inches of the screen..
Cant find recipet and paid cash at tescos so kind of stuck. am good with electronics and do alot of repairs but as the tvs not that old im rather stumped by this... can anyone offer any advice?