This is the awesome documentary Fight Science from National Geographic. The series features awesome 3d animation to demonstrate how cool each martial art is. Some of the styles represented in this documentary are:

Hand to Hand Combat -
American Style Boxing
Brazillian Jui-Jitsu
Wushu
Kung Fu
Karate
Tae Kwon Do
Muay thai
Ninjitsu

Weapon styles -
Three section staff
Japanese archery
Katana
Kali Sticks