I don't really know much about MACS, does your laptop have HDMI out?
Use that hookup to your TV. Better picture and sound.
If not, you can use your TV like a monitor if it has the 15 pin high density D connector. Try using a monitor cable from your laptop to your tv. You will then need to get the sound from your laptop to your TV or hook up speakers to your laptop.
HDMI is way easier since the audio and video are carried by that one cable.
-G