I'm sure your installers know what they are doing. I presume you will have a HD source hooked up to this tv?On finding studs-- Each toggle/or recptical box is mounted to a stud. This could be one side of that box,or the other. Just about all studs are 16 in. apart. Once you get close, a tiny drill bit-I do mean tiny- will get you right on the money. Once you 'hit' the stud,drill holes on each side of 'that' hole. This is to find where the stud begins, and ends--so as to get the middle of the stud,and not the edge.The world of HD is exciting;enjoy your new toy!!