It's to do with......PAL TV systems (UK and other countries) having a higher horizontal resolution (but lower frame rate) than NTSC TV's (USA), though they do have a higher framerate.
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Thu 28 Feb 2008, 12:40,
archived)
Also...NTSC is known in the industry for being shit.
NTSC = Never Twice Same Colour
(NTSC = Never Twice Same Colour
Scaryduck LIKES EGG,
Thu 28 Feb 2008, 15:17,
archived)