This is a stupid question but I am very frustrated and did not know who to ask. I just got my first plasma screen the other day and decided to try and mount it myself. It is 42 inches and weighs 70 pounds. I am trying to mount it over my gas fireplace which is boxed by 3/4 inch wood paneling. I tried finding the studs with my normal stud finder but was not successful. I then tried hammering a smaller nail through several areas where the panels meet where the hole would be hidden. That also gave me inconsistent results. I then went and bought a "deep scanning" stud finder which again goes off all over the place or not at all and with little consistency. I then resorted to drilling small holes around and some times hit something solid after going through the 3/4 inch panel and most times hit nothing afterward, even going up and down the same vertical I would hit then not hit something deeper. I have researched for hours other ways to find studs but nothing seems to work. I was told by the condo manager there is studs back there at 16 on center. So I have two main questions: 1. Any ideas on finding the studs. 2. Can I just rely on the 3/4 inch wood panels with (9) 2 1/2 inch screws. Or even try molly anchors or related hardware? Would anybody feel comfortable doing that with a plasma? I immensely appreciate any input.