According to Dell, your laptop has VGA and S-Video out. Your TV could have either of them, [broken link removed] is more common but [broken link removed] is possible. Post the model number here and I should be able to check. It's worth pointing out that neither of those cables will carry sound, they're video only so you'll need a 3.5mm headphone cable if you want to use you TV speakers.
If your TV has neither of those, you should be able to get an S-Video to Scart cable.