Things You'll Need
Instructions
Place your Wii's sensor bar on top of your computer monitor. Connect the sensor bar's wire to the port on the back of your Wii.
Connect the Wii end of the Wii RCA cables to the port on the back of your Wii console. Connect the yellow RCA end of this cable to the RCA port on your computer's TV tuner card.
Connect the red and white ends of your Wii RCA cable to the RCA ports on your Y-connector. Connect the headphone end of this Y-connector to the headphone port on your computer's sound card.
Open the descaling program on your computer. Set the video source on this program's main menu to "Composite." Then, go to the program's deinterlace menu and select the "Automatic Format Detect" option.
Start the descaling program, and you should now see the visual signal from the Wii on your computer monitor.