Originally Posted by rerushg
My card, 7900GS (EVGA), came with an S-video/component splitter
Even though your component cable connects to the same connector as the S-video cable, the component signal is not split from the S-video signal.
The connector on the card contains both S-video and component outputs, that are partly independent.
Still, this splitter uses the output of the tvout encoder. Best quality can always be obtained directly from the videocard (DVI/VGA output) instead of via the tvout encoder.
Of course you need a display with DVI/VGA input for this. Some TV sets do have such an input.