Instructions
Push the cords in tightly to the back of the Wii unit. If the cord is not in tight, there will be no connection from the Wii to the Toshiba television.
Check to see that the AV cords are in the correct jacks on the television. The cords are color coded and the yellow cord needs to be in the yellow jack; red in red; and white in white. Push in tightly to assure the cords are secure.
Assure that your Toshiba television is set to the correct station. Check where the cords are in correlation to what station you have the TV tuned. For example if it's plugged into the HDMI jacks, you must have the TV set to HDMI.