Sliding warranty

I was talking with a HomePro sales guy about a Samsung smart TV that I'm thinking about buying. At first he told me that it comes with a 3-year warranty. But later, he slips in that well, actually the first year is a 100% purchase price warranty, the second year covers 70% of the purchase price, and the third year covers only 60% of the purchase price. Reminds me of road hazard warranty on tires. I've never heard of that for TVs. Is that prevalent here, or is it something that HomePro does?