The old crt mammoths used to last decades.
My 14inch CRT I still own from when I was 16, still works today and I am 39 now. Sadly companies will always cut corners to increase those profits and when you factor in planned obsolescence, its not surprising to see things fail quickly. They dont want you to buy a TV and it lasts 20 years without issues as then you may never buy a new TV in that 20 years.
Also my experience of getting electrical goods repaired is pretty damn poor.
Our VHS recorder broke down when I was a child, my dad used to get it repaired on an annual basis, it never lasted more than a year between repairs, he always had a short termist view on expenses, he probably spent more than the cost of a new VHS recorder on repairs but he always only ever looked at a single repair cost vs a new unit.
A monitor I had died about a week before warranty expiry, it was repaired and shipped back, the exact same fault developed again about a month later but this time outside of warranty.
When you factor the costs of shipping, people doing the repairs, parts, etc. you wonder why they dont just do an exchange but its all about saving pennies I guess. I certainly think if something fails inside a warranty period one should just get a replacement not a repair.