Bought house couple years ago .Had direct tv come put coax in 2 of the rooms we hadent moved in yet. Go to house and wire laying on ground blew hole through side of the house theres your free install. Im working on putting all coax under the house comming up in a wall got to looking theres a splice block on the other two rooms with a piece of #12 stuck down in the ground. im fixing all that should that ground be at the dish dont know whats its grounding now.how do you ground coax cable and is it good to do all the coax at the dish just have connectors on them thats all i see.looks like harry home owner install its got to go. and i have holes in my siding but it was free thats what direct tv told me when i called them about it...