Learn About RGB
What is RGB!? RGB is referring to Red Green and Blue (and also sync), and when using this analog method of input you get a more vibrant and sharp image than just using composite. Composite is sometimes referred to as "AV hookup". It's a yellow rca connector. Composite is the most common way people hook up their only consoles to crt tvs, but it's also one of the worst as far as quality goes.