You will need some type of S-vidoe adapter, most labtops don't come with those, but TVs do.
Honestly if you don't know alot about computers, call up Dell (they are cheap and make a decent product) tell them what you want, they will actually piece together your personal labtop. They offer great service, and a good price. You could always go to a place like Best Buy, they are good too, but they may not have what you want, nor can they piece together something for your individual needs.