sorry guys this is kind of a noob question but i just got my ps3(yay!), however, my tv only supports 480/1080i. i was wondering if its necessary for me to get the hd cable or hdmi cable for my ps3. since my tv only does 1080i, will 720p games at least look a little better with the hd/hdmi cables? what about with bluray movies? thx a lot guys :)