4-pin S-Video to 2 RCA? And where do you plug the two RCA cables?
OK. To get a picture:
- you can use a 7-pin S-Video to RCA cable (Didn't you get one with your laptop? See if you can order one from the manufacturer.)
- you can use a S-Video to S-Video cable or a S-Video to SCART cable. Your TV has to support the specific input of course.
To get sound, you need to run a cable from your computer's soundcard's line out to your TV's audio input. It probably has to be a 3.5mm stereo to RCA stereo.
There are also cables that combine S-Video/composite/audio wires and plugs.
I'd say your priority is to get a proper 7-pin S-Video to whatever adapter.