Well, are you sure it's a macbook? I have no idea what G Live is.
If it's white, does it have a webcam just above the screen? If so, it'll be a macbook.
The macbook has a miniDVI port. So you need miniDVI to something cable.
This something depends on the TV. If the TV has a S-video port, then get a miniDVI--S-video cable. Else it almost certainly has regular phono connections for video.
If the TV has DVI then that's better, and S-video is better than phono. Don't get HDMI.