I have a vizio TV and a Magnavox dvd player. I have it all hooked up and such but there is no option on the TV to put it on AV. Just TV, COMP, CABLEBOX. No other input options.

A snapshot of the back of the TV and DVD would help. Also the model # of the two devices. Vizio is a fairly new brand so I would be surprised if it doesn't have multiple inputs. What outputs does the player have and what inputs does the TV have.