No matter what you do to the settings, any TV tuner solution is always going to result in a rotten picture quality, even when compared to the thoroughly bad quality normally achieved with the standard composite video cable that normallly comes with each PS2, for connection to the composite video input of a TV. (That same bad quality also applies to S-Video cables.)
While a TV may have worse picture quality than your computer monitor does when used by that computer, the modulation/demodulation required to use a TV tuner for your PS2 signals is going to be far far worse anyway.
The best available PS2 picture quality results from using RGB/SCART/Component outputs, which in turn requires buying some new PS2-specific cable, as the regular one supplied with every PS2 only offers composite video (==garbage quality). Using such a new cable with a normal TV (assuming it has such connectors, like all new sets should) will give far better picture quality than you can ever achieve using TV-tuner or any composite TV-in/VIVO adaptors for a computer.
Best regards: dlanor

