Ah that's quite unfortunate; being a resident of Europe, your TV is PAL and the Japanese and American versions of the PS3 have a signal output in NTSC. You could try "googling" for an adapter, although I can't say that I've ever heard of one. My suggestion would to be sell it or buy a high definition TV.
HDMI and DVI have their own standards, neither of which are PAL or NTSC. They're universally compatible in all regions. But if he's asking about NTSC, I take it he's not using the HDMI port so... nevermind. :-)