[mythtv-users] Double entry of live tv recordings in mythfrontend recordings list

[Jeffrey J. Kosowsky]

Kevin Kuphal wrote at about 11:04:36 -0600 on Tuesday, December 9, 2008:
 > On Tue, Dec 9, 2008 at 10:57 AM, Jeffrey J. Kosowsky <
 > mythtv-users at kosowsky.org> wrote:
 > 
 > > I have long noticed that many times when I watch liveTV (without any
 > > channel or configuration change) that I get "double" entries for the same
 > > program in my media library. Both entries have the same channel and
 > > start time but the first entry is often (always?) an empty file.
 > >
 > > It seems almost as if the tuner is trying twice with the first time
 > > creating an empty file and the second time succeeding with a valid
 > > stream. My tuner is a pchdtv5500.
 > >
 > > This seems to happen mostly on very short recordings. Either that or
 > > the duplicate/empty file gets auto-deleted after a little bit.
 > >
 > > Also, is there some logic that very short recordings (maybe < 1
 > > minute) get deleted after a few minutes rather than being stored for
 > > 24 hours?
 > >
 > > (Note I couldn't find much detail on this either on the LiveTV wiki
 > > page or in the FAQ)\
 > 
 > 
 > It's likely the "dummy" stream that is used during tuning.  And yeah, it
 > will get expired quickly
 > 

I know that there are pros/cons for listing live tv at all in the
Recordings list. But what possible advantage could there be to listing
the "dummy" stream?