My games for the PS3 or pixely?

May be...

I just bought a PS3 three days ago. Also today I bought Killzone 2. I noticed it is really pixely and not clear. I am playing on a 26 inch 720p Toshiba. I used to have an Xbox 360 and I never had this problem. What do I do?

the ps3s cable aren't hdmi cables thats an extra $20

buy an HDMI cable and connect it to your T.V. with that.