I have not tried it yet since I don't have an S-Video plug on my TV. 
But if you are trying and can't get it to work, it's most likely because the TV-Out option is set to "Disabled" by default in the BIOS. When you first turn on the notebook, push <F2> so that you enter the BIOS. You should then be able to find the setting to set TV-Out to "Enable." Then exit by saving changes and you should be all set.
If you are not comfortable with going into the BIOS, you might want to reference the user manual for a more detailed description of how to enable it.
Of course, I may be jumping the guy..maybe it works for you and you were just curious! heh heh
But if you are trying and can't get it to work, it's most likely because the TV-Out option is set to "Disabled" by default in the BIOS. When you first turn on the notebook, push <F2> so that you enter the BIOS. You should then be able to find the setting to set TV-Out to "Enable." Then exit by saving changes and you should be all set.
If you are not comfortable with going into the BIOS, you might want to reference the user manual for a more detailed description of how to enable it.
Of course, I may be jumping the guy..maybe it works for you and you were just curious! heh heh