HDMI cable, AV cable, different color line

HDMI and DVI are digital signal, can be lossless conversion through a simple line. At present the highest support for 1080P, HDMI and VGA are simulated and compared in high-end signal, but some components can be VGA, some not.

VGA line interface - that your TV supports 480p

AV line plug can not adjust the resolution only SD 480i

Color line and VGA line in your TV makes no difference, the maximum is 480p, the 480p effect is relatively poor but better than 480i.