A:AnswerI really do not know if the angle is 178 or 176, but I doubt you could tell the difference. I have my TV mounted above my fireplace at a 45* angle, I am happy viewing from all angles in the room.
A:AnswerYes are TV is about 75 feet or more & connects to our wireless internet the 4K content comes in so clear. Way better then the picture then what was on at the store. I am more then satisfied with this TV.
A:AnswerYes. Best results are using the HDMI output from your Dish box into one of the 4 HDMI ports on the TV. Am using it myself with Dish and works great together.
A:AnswerI own the same TV and haven't experienced any issues. Are you sure you have an internet connection? I have streamed both Netflix and Youtube from the built in apps with no problems, also from my Xbox One.
A:AnswerI have a Logitech system plugged in through the head phone jack and it sounds real good. It has two small speaker cabinets with speakers on front and rear of each, and a powered subwoofer on the floor. Inexpensive, but sounds real good.
A:AnswerCannot say too much about the screen....I bought for son.....but the warranty IS 4 years...or so they say...guess you never know until you're 3 years 11 months down the road and it quits working.
A:AnswerDon’t know but it went down twenty additional dollars in about ten days from when it was purchased. Check with Best Buy. Hard to say about clearance items. Especially since when newer model comes in, the older goes on sale and/or clearance.