If your TV has a VGA input and your laptop has a VGA output (usually in blue) you can use it, it is good. Now if you still want to connect through HDMI then you probably need to find a Docking Station for your laptop and attach it to it (if exists with hdmi) I don't know what laptop are we talking about?
the tv does not have a VGA. It has a hdmi and the Dell laptop has USB & VGA. Just in the little bit of reading i have done - it sounds like something more than a cable will give me a better picture; is that true?