Why would anyone care whether their TV literally has quantum dots in it? It matters how bright it is, how wide its gamut, how accurate the colour reproduction, how much power it consumes, how long it lasts, etc., and maybe all those tend to be different for panels with quantum dots in them, but it's those things that matter, not what technology is inside.
(I don't mean it doesn't matter whether they're lying. They shouldn't lie, and if they're lying that's bad. But this just seems such a weird thing for anyone to care about at all.)
Because they said it did. I don't like being lied to. If I don't know what type of TV it is I can't assess all those factors you mentioned in the first place.
If they say it's a quantum dot TV, I'm going to look up how long quantum dot TVs last. If I've been lied to I'll make a decision based on incorrect information.
If their claims don't matter, why do they make them?
Because if they’re lying about the quantum dots, they may also be lying about brightness, color gamut, and reproduction - all things I don’t have the ability to verify at home.
Alternatively, if their TV was designed to meet certain specs for the above with quantum dots, and faulty/fraudulent panels are missing said dots, it likely won’t meet all of those specs.
My first research project in undergrad involved quantum dots so buying one of these would largely be for sentimental reasons. (I haven't bought one because the last time I needed a TV they were pretty pricey but next time I probably will). So I'd be pissed. I imagine I'm a special case here though
If it doesn't matter, they shouldn't hesitate to drop the claim from their marketing material, right? Right?? Oh... it does matter and that's why they're lying.
(I don't mean it doesn't matter whether they're lying. They shouldn't lie, and if they're lying that's bad. But this just seems such a weird thing for anyone to care about at all.)