What is the difference between various kinds of wires?
There are three common inputs for HDTV. For maximizing results when hooking up your HDTV. These HDTV connectors maximize your viewing experience:
Component cables: Using a three-plug video connector, component video delivers the best viewing experience by supporting superior color details, improved color purity, and a reduction in the impact that interference or other poor signal quality issues may have.
Digital Visual Interface (DVI): DVI connectors transfer video signals in pure digital form, which is especially beneficial if you're using a plasma, LCD or DLP TV. Signals are encrypted with HDCP (High-bandwidth Digital Content Protection) to prevent recording. There are two types of DVI connectors: DVI-D carries digital-only signals and DVI-I passes both digital and analog video signals. Some TVs feature DVI-I inputs for greater hookup flexibility.
High-Definition Multimedia Interface (HDMI): An HDMI connector supports an all-digital link between an HD cable box and HDTV that combines digital video and digital audio on one connection rather than using separate connectors for each function. This delivers extremely high-quality digital video and audio. HDMI is fully backwards compatible with DVI. For more information visit: http://www.hdmi.org/learningcenter/