[mythtv] ATSC question

Devin Heitmueller devin.heitmueller at gmail.com
Wed Feb 24 15:04:08 UTC 2010

On Wed, Feb 24, 2010 at 9:24 AM, Dan Wilga
<mythtv-dev2 at dwilga-linux1.amherst.edu> wrote:
> It would be useful if there was some way that this could be used to know
> when a particular program (like a sports event) is running late.
> So if I have "60 Minutes" scheduled to record, but it's delayed due to
> football beforehand, the proper data isn't sent in the stream to indicate a
> new program starting. So keep extending the end time of the recording until
> it is seen.
> This could even be useful for those annoying cases where networks
> intentionally skew start/end times by several minutes in a vain attempt to
> keep their audience captive. Basically, don't stop a recording until the
> next program starts.

Yup, all that would be great.  Except the broadcasters don't actually
do that.  They populate the PSIP feed pretty much with the same data
that is used by SchedulesDirect.  In other words, if a program runs
long, then the ATSC guide will be just as screwed up as the
SchedulesDirect guide.

Unfortunately, the broadcasters don't really have much incentive to
make this system work well, and in fact they probably wouldn't have
done it at all if they hadn't been compelled by the FCC (their digital
carriage license requires it).


Devin J. Heitmueller
AIM: devinheitmueller

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