A:AnswerYou must remember, this is a bargain priced tv, But for the money it is quite good, and much better that the older HDTV's. And, this is where most people get disappointed with their new tv, your programming must be sent to you in 4k or HD, otherwise you are going to be viewing in 1080. The sound is quite good, and has dts surround. The remote is rather small, and typing in a search is a pain, but you get used to it. Setup was pretty straight forward, easy to follow instructions.
A:AnswerThe default picture is 1080 because most programming is 1080 if your on satellite or cable. In order to view 4k or HD, your programming must be sent to you in 4k or HD. For instance, I have Netflix, and for a small extra fee on your monthly bill, they will broadcast or stream a few movies in 4k and HD.
A:AnswerIf you are hooking up to a AVR home theater use HDMI. If you don’t have HDMI on your receiver use a optical cable. Most likely labeled toslink or SPIF. Enjoy.
A:AnswerAll these settings are found via the remote settings button. You just need to scroll through the options until you find what you are looking for. Go to the "advance" settings for picture and sound options.