Hi, i am looking to install a 65" LED tv on a wall. directly beneath the tv will be a bench that will not be used often (and obviously cannot be used when watching tv). i'd like to keep the TV+wall mount as close to the wall as possible to minimize people hitting into the tv when sitting on the bench. i can get some specs for tv depth, but it's hard to tell what the final depth would be once the wall mount is added in. i am considering the samsung 7100 or the sony kdl 850a (which seems a bit thicker than the samsung). any others i should consider? how much additional space does the wall mount take up?