The wall I want to mount my tv on is a section of wall that extends out kind of like the rear of a closet. The portion I'm concerned about is 38" wide. I spent an hour yesterday with a stud finder and drill, and this section of wall has absolutely NO studs other than at the corners, 38" apart. I'd like to mount my 40" samsung on this wall but need alternative solutions since I can't mount it to typical studs. The mount I'm using was designed for 16" studs and weighs 30 pounds. I'm not about to mount my tv straight to dry wall so I'm looking for some advice. My only idea would be to put a large piece of plywood across the 38" span and mount to that. Please provide any advice you can give. I'd like to keep cutting out sections of dry wall as a last resort. Thanks!!