A:AnswerMine does as well, it's not a flaw, I think it's the design and merely presents an illusion that it's not right, the floor models have it as well
A:AnswerAll American specific TVs work on a 120 V basis. I purchased this in a Best Buy in the USA therefore it is 120 V. I am not aware if there is a version for other countries with a different power adapter built in.
A:AnswerYou should use a 4K Fire HD or Roku Ultra instead of the native apps if they aren't playing at high enough quality or you encounter skipping. You can use one, but you'll be missing out. The native apps are better than using a fire stick.
A:AnswerIf the surround sound system is either Bluetooth or Wi-Fi capable, yes! I have both a Bluetooth speaker and a Wi-Fi Samsung Series 5 sound bar connected to mine!