Check the Wii AV Multi Out port on the back of the console
Use the Wii AV cable or a Wii-to-HDMI adapter
Connect the Wii AV cable to the Wii
Connect the red, white, and yellow plugs to the TV’s AV input, if available
If using a Wii-to-HDMI adapter, connect the adapter to the Wii AV port
Connect an HDMI cable from the adapter to an HDMI port on the TV
Plug the adapter into power if required
Turn on the Wii and the TV
Set the TV input to the correct AV or HDMI source
If the image is black and white or distorted, check the cable connections
If the TV has no AV input, use a Wii-to-HDMI adapter or AV-to-HDMI converter
Adjust the Wii display settings if needed
Set the TV aspect ratio to 4:3 or the Wii display to match the screen size