Separate Video, more commonly known as S-Video is an analog video transmission scheme, in which video information is encoded on two channels: luma (luminance, intensity) and chroma (color). This is in contrast with lower-quality composite video, in which video information is encoded on one channel, and higher-quality component video, in which video information is encoded on three channels. S-Video carries standard definition video (typically at 480i or 576i resolution), but does not carry audio on the same cable. A bit more here for you to "read and digest" click here
You need a s video output device (something like an old analogue camcorder) connected to the card you should then beable to catch any input footage. If it also works as an output then you should be able to connect to a TV and display the desktop.
I have identified the s-Video as 9 pin veriant which I read has input AND output.A spider cable with 4 cables all connected to the 9 pin S-video plug was supplied with PC. The four spider cables are
4 pin s-video plug labelled S-Video out RCA type red plug labelled Pr/Video out RCA type blue plug labelled Pb/Video out RCA type plug labelled Y out
This rather suggest that it is only for OUT from the tv card - is that correct? Assuming thats so should I be able to connect the tv card to the S-video spider cable and the 4 pin S-video on the spider to a tv. My tv doesn't have s-video built in butI have a scart to S-video adaptor which is switchable between input and output - would this work?
i had a similar card some while ago. You mention a spider cable. Do you have it? If it's sililar to what i had, this plugs into the board and has a range of connectors for the inputs/outputs you mention