Rendering: Pixel Aspect

I know we’re supposed to render at 720 x 480.

What should the pixel aspect be?

Image aspect 1.5
Pixel aspect 1

Actually, the pixel aspect is 0.9.

Okay… we have 2 opinions.

Does anybody know for sure?

I am absolutely right, but pixel aspect is not a critical option.

Whatever pixel aspect you have, your animation will still have 720 pixels in a row and 480 pixels in a column.

But, pixels in NTSC TV are not square. They are slightly squished. Setting the pixel aspect will have Max compensate for non-square pixels on a TV. This way, squares turn out square and circles turn out circular, and not rectangular or elliptical.