Financing a TV or buying it on a card with an unpaid balance are equally stupid. Same thing. Either buy one outright when you have the money or don't buy one.
...which is why I said "unpaid balance". If the TV is less than an month old and you just haven't paid the monthly credit card bill yet, I supposed you could say that it "isn't even paid off yet" but generally you'd just say it's brand new. The implication is that the TV was financed and they're still making payments on a broken TV. Which is, again, stupid.
That sucks but don't buy things on payments. you pay more in the long run. or if you do, get the insurance they usually like to offer. hopefully lesson learned