To enter the setup code on a Vizio TV, go to the on-screen prompt that appears during initial setup or when adding a device. Visit the specified activation website (like netflix.com/tv2 for Netflix), enter the code shown on your TV using your phone or computer, and follow the steps to complete the connection. https://viziohelpguide.helplook.com/docs/Where-do-I-enter-the-code-on-Vizio-TV-for-setup