Instructions
Power on your Wii and hit the "A" button to access the Wii Home page. Click "Wii Options" in the bottom right corner. Click "Wii Settings" on the right of the screen.
Choose "Screen" from the list of menu options. Choose "Widescreen Settings" from this list of menu choices. Choose "Standard" so everything appears full screen on your television.
Sign up for a Netflix account on the computer with your current email address and a password.
Select the "Netflix" button from your Wii home screen. Click "Start."
Type your account information on the screen. Click "Okay." Visit the link provided on the screen (Netflix.com/Wii) to activate your Wii.
Type the code from your Wii into the box on the website and click "Submit."