Things You'll Need
Instructions
Connect your Wii to the TV using the Wii component cables. Plug the one end of the cord into the back of the Wii, then plug the colored connectors at the other end into the corresponding colored ports on your TV. Make sure the display on the TV is using widescreen settings.
Turn on the Wii.
Select the little circle in the bottom left corner of the Wii home screen with the Wiimote to access the Wii options menu.
Select "Wii Settings" from the Wii options menu.
Flip through the pages in the settings menu and select "Screen." From here, select "Widescreen Settings."
Choose "Widescreen (16:9)" from the Widescreen Settings menu, then click the "Confirm" button in the bottom right corner.
Go back to the Screen menu and select "TV Resolution."
Choose the "EDTV or HDTV (480p)" option, then click "Confirm."
Go back to the Wii home screen and load a Wii game to test the widescreen display.