i think the flavor of the show might be Out of Range of American audiences.
and the problem with keeping shows on the air today is that so many viewers today are Roaming Charges, just flipping the station whenever they like.
furthermore, moving a Japanese tv show so far Out of Area from its country of origin might make for a Bad Connection to American audiences.
and in further cell phone entertainment related news, perhaps you weren't all aware that there's been a recently released Hong Kong made official remake of Cellular.
[youtube=425,350]bl_VOAXyDEg[/youtube]
the cell phone/action genre is obviously booming in all parts of Asia.