That's a difficult one
It tends to be only older TVs that have manually adjustable vertical and horizontal hold controls.
If you can get the converter (or transcoder) on approval you could try it on the GF's TV because it might just sync up without adjustment.
Many TVs in Europe are PAL/NTSC compatible, not sure about north America ; although I spend quite a bit of time over there, I have never tried that (I'll be in Boston in 2 weeks time).
Chris Muriel, Tel Aviv (usually Manchester)