[MovedGoalPosts]

It can be a self install, but usually a tech visit is best, to check the signal levels and that sort of stuff is OK. No sure what the charges are.

It doesn't require the drive to be dug up again, it's just adaptation of the cabling within the house. This can be simple or more complex depending on where the SACM is to be relative to the STB.

If you just want the two along side each other, a simple cable splitter can be added to tee off one from the other. That can be done easily self install with the supplied bits and fixed lengths of ready made cable VM send.

If you want different locations, especially different rooms, then a tech install is necesary and they will work out how to run the new cables from the existing box you have on the front of the house.