A plasma tv stand is a piece of plastic or metal that is used under your plasma tv to provide balance and stability while watching it. The plasma tv stand is usually under your tv and will attach to the back or the bottom of the plasma tv. Plasma tv stands are usually also produced by the same companies that also create plasma tvs. The plasma tv stand will come in a box of its own when you purchase it and is roughly the size of a small cat. Without the plasma tv stand, your tv will fall over and become damaged. It is nearly impossible to use a plasma tv without a plasma tv stand.