[mythtv] Recordings are starting late

[Robert Kulagowski]

Running CVS, minus today's update for the message logger.  This is a 
system with 4 capture cards, first two are on the masterbackend, last 
two are on a slave/remote frontend.  All four are available.

Basically, programs that are scheduled to be recorded are starting late, 
but only if they are back-to-back with a program in front of them.

Here's the result from mythbackend --printsched last night:
Sesame Street                       20 1020  14 07:00-08:00  1 13 13  A 
0 13   0
30-Minute Meals - "Dinner Simplif   60 1060  14 10:30-11:00  1 13 13  C 
0 13   0
The Real World - "San Diego"        29 1029  14 11:00-11:30  1 13 13  S 
0 13   0

Here's what the mythbackend printed:

2004-03-14 10:30:02 Started recording "30-Minute Meals" on channel: 1060 
on cardid: 13, sourceid 1
2004-03-14 10:30:02 Changing from None to RecordingOnly
2004-03-14 10:36:20 Expiring "30-Minute Meals" from 2004-03-09T13:30:00, 
too many episodes.
2004-03-14 10:41:37 MainServer::HandleAnnounce Playback
2004-03-14 10:41:37 adding: masterbackend.local as a client (events: 0)
2004-03-14 11:00:00 Changing from RecordingOnly to None
2004-03-14 11:00:00 Found changes in the todo list.
Input #0, mpeg, from 
'/var/myth/video/1060_20040314103000_20040314110000.nuv':
   Stream #0.0: Video: mpeg2video, 720x480, 29.97 fps
   Stream #0.1: Audio: mp2, 48000 Hz, stereo, 384 kb/s
2004-03-14 11:00:54 Started recording "The Real World" on channel: 1029 
on cardid: 13, sourceid 1
2004-03-14 11:00:54 Changing from None to RecordingOnly
Setting(2) length to 1676 50246
Setting(2) length to 1796 53835
2004-03-14 11:30:00 Changing from RecordingOnly to None
2004-03-14 11:30:00 Found changes in the todo list.

So, "30 Minute Meals" started on time at 10:30 and ran until 11:00. 
"The Real World", which should have started at 11:00, didn't start until 
11:00:54.  Global post/pre-roll is "0", and there are no per-program 
start early/end late for any of the programs.