Vizio XVT3D424SV Quick Start Manual page 7

2
Slide the stand into the slot on the back of the TV, making sure
the arrow on the base points toward the front of the TV.
Securely tighten the wing screw in the center of the base plate.
3
Move the TV with attached stand into an upright position and
place on a flat, level, and stable surface.
To prevent the TV from falling over, attach one end of the
included safety cable to the wall behind the TV. Attach the other
end to one of the wall-mounting holes on the back of the TV.