It probaly just a resolution thing. You need a newer console, hehe; or maybe a gamebridge adapter might help.
I just bought a Samung LN-S2338W HDTV and connected my Playstation 2 to it. I used the RGB cable to connect it to the TV. I noticed that the TV became quite blurry and was not as sharp as it is when watching cable. Please advise me on how I may be able to fix this problem.