that's what you say

he purchased the car only a month ago, typically there is some limited warranty sold w/ 2nd hand car, check the contract. If not, keep all the docs and proof, drag that mofo dealer to the small claim court, accuse him of knowingly sold defect car to you, i'd do that.

And your TV story, all major TV manufactures carry a limited one year warranty, you still can exchange/repair your TV within one year. Check your warranty info before buying.