What is the difference between TV, AV, Component, RGB, and HDMI input sources?

TV is used when watching the TV directly. AV is used when watching VCR or external equipment. Component is used when using DVD or Digital set-top box (depending on connector type). RGB is used when connecting a PC (depending on connector type). HDMI is used when using DVD or Digital set-top box (depending on connector type). Select the appropriate input based on which device you want to use.