There're plenty of Pal/NTSC converters available. You should be able to find them at Sim Lim or Funan IT Center.
But as for you TV (US-Made), do note that the voltage for most (in fact, I think all) of Asian Countries are 220-240V instead of 110-120 (as is found in USA/Canada).
Projector TVs are cheap now. Why not just sell off your tv there and get another here?
p/s: Welcome to Singapore