The smartest TV around

I bought this TV 3 years ago, and since then we’ve had quite a few problems. The sound stopped working a few months after we got it, the picture became blurry on the next one, this is the 3rd Tv because Costco keeps exchanging us, and this one is proving to actually work, it’s been working for just over a year straight with no problems.
Maybe the two we originally had were just badly built. Overall we are happy, I just wish we didn’t have to go through 3 of them to get a working one.