Will you take the old mount down?

Yes. The old bracket comes off the wall, the new one goes up, and the packaging from the new screen and bracket leaves with us rather than sitting in your hallway for a week.

Old holes can be filled. We do not paint, so a filled hole will be a patch of filler rather than an invisible repair until you put a roller over it. Where the new bracket is a similar size we can often land the new fixings close enough that the old holes end up behind the plate, which is the tidiest outcome and the one we aim for when the studs allow it.