[mythtv-users] Why are some seriesid's SHnnnnnnn and some EPnnnnnnn?

[f-myth-users at media.mit.edu]

    > Date: Sun, 16 Sep 2007 22:45:35 -0400 (EDT)
    > From: f-myth-users at media.mit.edu

    > Shortly after the DD->SD cutover, I got screwed because one of the

Oh wait a minute---I just remembered that I -first- detected this
problem in mid-August and while still using Zap2It---a weekly series
I'd last recordeded on 8/12 failed to record on 8/19 because its
seriesid had changed.  But it looked like a single change to the
entire database and I marked it down to one of the info sources
screwing up their process somehow.

However, the weekly series I -just- noticed last recorded on 9/2
(several days -after- I'd cut over to SD), but failed to record on
9/9, again because its seriesid had magically changed format.  These
are on different channels from different lineups.  Other weekly series
are still recording, which was why this was so easy to miss.  (In fact,
given the gradualness of this, there really might not have been any
scheduling changes between DD and SD for me to notice when I was doing
my side-by-side comparison.)

So it looks like this is happening GRADUALLY!  What's going on?  When
will it end?  I imagine this is going to lead to a lot of subtly
missed recordings---after all, the whole -point- of a DVR is to not
have to know when things really air, so it can take many days until it
dawns on one that something has mysteriously stopped recording...