Peerless Flat Panel Corner Mount (32" to 58" Screens)

I'm very happy with this corner mount, the mount arms have to be a bit extended all the time in order to actually be able to fit my 50 inch plasma tv in the corner of my living room, but everything works as advertised. I'm especially pleased with how easy it is to adjust the tv angle to the left or to the right or move the tv toward or away from the mount. A word of advice: the first step of the instructions describe determining a distance 'X', where 'X' is the distance from the corner of the walls to the inside edge of each wall plate. The determining is based on an equation of X = (Y/1.414) - 21.216, where 'Y' is the long side of the triangle that is created when you mount the interface plates to the wall plates. 'Y' isn't necessarily the width of your television. In my case the width of my television plus the width of the side speakers came out to 57 inches, and I wouldn't have been able to attach the mounting bracket to the interface wall plates if I set 'Y' to 57 since their total width is less than 57 inches. Instead I determined how big Y could reasonably be based on the width of the interface plates and the width of the mounting bracket. My 'Y' came out to about 44 inches, which is significantly less than the width of my tv, but it gave me plenty of overlapping area between the interface plates and the mounting bracket, which enabled me to securely connect the mounting bracket to the interface plates. I probably could have bumped 'Y' up to 45 or 46 inches, but I didn't want to screw the wall plates into the studs and then find out that the mounting bracket can't be securely attached to the interface plates because they're too far apart, so I played it a bit on the safe side. As I mentioned above, the result of creating a smaller triangle is that the arms on the mounting bracket have to be slightly extended all the time because the tv is too wide to fit in the corner without a slight extension, but I think I'll have the right side of the tv pulled out a bit all the time anyway (similar to how the mounting bracket is shown in the product image, except the mounting bracket extension is reversed), so I'm not too worried about it.