Although a lot of Euro / Asian T.V's built for the U.K do Pal @ 50hz and Ntsc,
it looks like T.V's in the U.S are not built for Pal, and there is no reason why they should.
http://www.pioneerelectronics.com/pn...tailsComponent
240 / 120 is no problem, you can get transformers.
PAL /NTSC may not be a problem if you are only using the Plasma as a monitor for a decoder.
Getting the Plasma into the U.K in one peice and without paying import duty and Vat may be a big problem.
Why from the States?
.