Pal was only released in anamorphic widescreen with a vertical resolution of 430 lines. The NTSC Fullscreen version offers 480 lines of vertical resolution, as well as denser horizontal resolution since the initial 720 pixels are squished to represent 640 pixels worth of picture.

Essentially, the difference is the same 4:3 region is represented by 450x430 = 193,500 pixels in the PAL Widescreen, as opposed to 720x480 = 345,600 pixels in the NTSC Fullscreen.

Both are better than the 400x356 = 142,400 pixels that represent this same region on the NTSC widescreen release (The Full screen is nearly 2.5 times higher resolution).

Ideally we’d have a PAL Fullscreen but I don’t believe any were released (720x576=414,720 pixels).

The issue is of course finding a way to integrate this in without making the remaining 44% of the video look visibly worse in comparison. Integrating the HDTV stream (maybe 20 percent) into the widescreen portion should help without the broadcast pixellation issues interfering a whole bunch.