A:AnswerJust call or chat support with best buy. Last time i had an issue with my geek squad protected purchase they fixed the issue very seemlessly and quickly. No extra charge!
A:AnswerI have not seen that on my TV. Check if that is happening with certain audio sources like apps, consoles, blue-rays, etc. If this is happening with everything, I would reset it and try again. Use your warranty. They can help you with troubleshooting steps.
A:AnswerNo, it's the same premise as buying car insurance. Even if you don't use it, you want it in case anything happens. You don't get your money back if you don't use it.
A:AnswerIf it is broken, bring it to your Local Best Buy (as long as it's not from physical damage). Otherwise, you must purchase one through Best Buy or another authorized dealer.