How to reduce lag in my tv vizio e3db420vx?

Brandon Asked: How to reduce lag in my tv vizio e3db420vx?

I have a vizio 42in 3d TV model number e3db420vx and basicallyplay video games on it and its amazing except for this lag and it makes it so when i press a button there is a delay between when i press the button and when the game reacts and it makes it very hard to play and i was wondering if anyone else had this problem and how they fixed it.