How to hook up a ps3 to a LCD tv?

I want to hook up a ps3 console to a LCD TV DVD combo but dont know how. Please tell me the steps in doing this. Also how do I hook up my laptop computer to a ps3 to go onto the internet? Do I need to buy an ethernet cable? Do I need a TV and a Laptop with the internet connected to it aswell as a tv to have the internet on or do I just need a ps3 and a laptop because theres something about the internet already built in is there?