Why do so many PAL Wii game recommend to set the wii to 60Hz and 480i for improved picture quality...... almost always printed on the first few pages of the manual..

I assume this means that the games are designed for NTSC but the wii converts them to PAL 50Hz 576i which means they wont play smoothly?

Any ideas? Even though my TV can handle NTSC Im not keen to change the wii setting off PAL...

Any suggestions?