The answer is "it depends". Chances are the answer will be no. OTOH, chances are the defect will appear long before the warranty runs out.
Mayvbe you shouldn't buy a new set. You seem to be worried that out of millions of sets sold you will get one of the 2-5% that will be defective. If that's the case, then don't buy any electronics as that is the "risk" you take.
I recommend hand puppets. They have the lowest failure rate of any form of entertainment (.00001%) and with a little imagination you can watch whatever you want without worry. I'm watching Star Wars Episode IV tonight!