phi1ny3
Not the Mama
Good stuff, I was wondering where I could find a cheap one.There are other options but are generally more expensive. Video cards with graphic inputs are one way to do it. If you can fit a laptop with one it would be best but most people use PC's with these graphics cards. Basically you either take output from the TV plug the graphics card, or from the wii into the graphics card into the tv (depends on the setup). But graphics cards that do this are $100 minimum for low quality and no HD.
Best option would be the GameBridge made by Adaptec. It's an external tuner, basically you plug one end into a USB and one end into a TV output and it'll record. It's about $30-40 and easy to use. Low quality but it's honestly the cheapest thing you'll get that can record straight off the TV.
Note: Prices in USD