Im New To Hdmi Is There Really A Diference. Just Purchased The New Model Mitsh Wd65736 . Anything I Need To Know About Hook Up To Directv Hddvr And Hd Cablebox Both Have Hdmi Slots.

Without a doubt. Not just picture but with sound if you have a decent av receiver. Everything in the future will be hdmi, including your pc displays.

HDMI is all digital so it will be a great difference in sound and picture quality i shop at http://www.lenexpo-electronics.com for all my HD needs check them i like there HDMI cables