Previously on rec.arts.sf.tv.babylon5.moderated, Chris Adams said:

> In most cases of content simultaneously available in both SD and HD, it
> is the content provider, not the service provider, that knows which is
> which (like I said, TNT provides bogus data to the programming
> information companies, so I wouldn't expect them to do any better to the
> cable/sat providers).  Also, locked-in boxes are on the way out, since
> new boxes have to be CableCard compliant.

The Box knows if the content provider has flagged it as HD or not.
That's all The Box needs.  The content providers do (or should
properly) set flags for New, Repeat, and HD as well as for
content-rating.

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