VGA Cable and S Video

Hello,
I want to watch videos I have on my laptop through my TV. I have bought a VGA cable which I have connected to the TV and it displays the film through the PC channel on the television but no sound! I have also connected a cable (white and red one end) into TV and other end into the headphone jack on the laptop. This produces the sound through the TV but on the S Video channel not the PC channel. So basically I can watch the film with no sound or listen to the film with no visual as they are both on different channels.
Is there a way to have the two working together?? ?? Thanks in advance.