[mythtv-users] Detecting missed channels changes via logos

[Brad DerManouelian]

On Nov 20, 2006, at 8:03 PM, f-myth-users at media.mit.edu wrote:

> Here's a wacky idea, tossed out in case it inspires someone to
> experiment with it:
>
> We keep hearing about occasional missed channel changes.  Sure, it's
> great if whatever bug causes failures gets stepped on, but sometimes
> that's never possible, or takes an enormously long time.  And often a
> missed channel change means that the show is gone for good by the time
> the failure is detected (after all, the whole point of a PVR is that
> it records -unattended-; if you have to babysit it so it doesn't miss
> a broadcast that isn't repeated, it's lost a lot of its utility).
>
<snip>

I like the idea, but instead of logo detection, it should read the  
metadata that comes down from the stream to make sure you're actually  
recording the correct show. The metadata won't always match the show  
title perfectly, so it should be liberal with what it considers to be  
the "correct" show. Does anyone know off the top of their head if  
this data comes down for most channels now? Maybe it's just something  
that comes on channels with closed captioning?