A:AnswerIt depends on how the current mounting brackets attach to the wall. Since they are mounted to studs, they could be off center from the rest of the TV mount. There is only a certain amount that you can slide the mounts left or right and a larger TV may make it offcenter in the space. The closer the mounts are to the center of the space, the easier it will be to increase the size.
A:AnswerI’m not sure- we are using it for a 65 inch LG. The tv has room to slide left to right to center to our preference, so my guess is that it would work for a 70 inch. Sorry I can’t give you a certain answer.
A:AnswerA couple of pounds at most. Not heavy. Easy to install. We installed it and one side of the TV was lower. No problem...there are two screws on the back that you use to raise or lower each side to get it perfectly level on the wall. It took us some time to install it but only because it was the first time we'd done it. Now that we know how to do it the next one will only take about 10 to 15 minutes. Use a level to get the wall bracket level and you'll be fine. If it's your first time check out YouTube for easy to follow instructions. Hope this helped.
A:AnswerIt's a total of 4 holes, the depth is listed in the install instructions. It's determined by the mounting medium selected. Concrete, drywall, or studs.