[mythtv] ATSC question

Tim blooflame at comcast.net
Thu Feb 25 03:43:00 UTC 2010

So, to make sure content identifiers are passed through correctly for cable
and broadcast would require an FCC ruling, pretty much?

-----Original Message-----
From: mythtv-dev-bounces at mythtv.org [mailto:mythtv-dev-bounces at mythtv.org]
On Behalf Of Devin Heitmueller
Sent: Wednesday, February 24, 2010 10:04 AM
To: Development of mythtv
Subject: Re: [mythtv] ATSC question

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
> new program starting. So keep extending the end time of the recording
> 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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mythtv-dev at mythtv.org

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