The Wikipedia table just says "aspect ratio" without really defining what kind of aspect ratio. I'd argue it is wrong as it says
Code:
720×480 59.94i | 4:3 or 16:9
720×576 50i | 4:3 or 16:9
which implies display aspect ratio. For 1440x1080 display aspect ratio must be 16:9 also according to
the source wikipedia lists (see 3.3.1). Also
info on doom9 (table 1.3). I've fixed the Wikipedia entry.