A:AnswerThis television is 4K, you cannot change the amount of pixels on the television. The resolution that the television receives is determined by the source device. If you would like assistance with your television please contact our customer service at 877-878-4946.
A:AnswerThis TV does have a 400mm x 400mm VESA mount pattern. As long as your stand is rated for that mounting specification and is rated for the size and weight of the TV it will work.
A:AnswerI'm not sure what you mean by "Install Cable on this Smart TV". However, Most if not all cable boxes will have an HDMI output that you can use an HDMI cable to connect to this TV. So there should be no issues viewing cable TV programming through a cable TV box provided to you by a provider.