Hdmi cable - ps3?

May be...

Do i need to have the hdmi cable connected to play in hd or can i just have it hooked up to my tv?

well yes you have to you put the hdmi cable in the ps3 then on the television where you will see a hd input or out put. and if you don't have any hdmi cable i have a link here with lot of hdmi cables. and there are pretty cheap i bought one and it works great.

yes you need to have the hdmi connected to play hd. u can actually tell the difference from regular av cables and hdmi or component cable they range from 15 to 40 dollars at best buy

yes and u can get them for less than $5 at monoprice,reccomended by many people and tech websites