How to record video games straight off of the tv?

I have windows Vista. How/what do i need in order to record game play of video games. My tv only has an input (red white and yellow). I heard about Dazzle but i also heard it isn't compatible with Windows Vista Movie Maker. So I don't know.
and for the ds i heard you can record it using the r4 i have it so if it is true please tell me how.
 
Back
Top