Download IOError in hourly cronjob

[Brian May]

After upgrading to Karmic, I regularly get emails like:

=== cut ===
/etc/cron.hourly/mythvideo:

! Warning: Download IOError on URL for Filename(/home/mythtv/.mythtv/MythVideo/Fanart/Castle_fanart.jpg)
Orginal URL(http://images.thetvdb.com/banners/fanart/original/83462-7.jpg)
IOError urllib.quote URL(http://images.thetvdb.com/banners/fanart/original/83462-7.jpg)
=== cut ===

If I try to download the file manually I get timeout errors:

=== cut ===
brian@sys11:~$ wget http://images.thetvdb.com/banners/fanart/original/83462-7.jpg
--2009-12-14 14:35:20-- http://images.thetvdb.com/banners/fanart/original/83462-7.jpg
Resolving proxy... 202.158.218.252
Connecting to proxy|202.158.218.252|:3128... connected.
Proxy request sent, awaiting response... 404 Not Found
2009-12-14 14:35:20 ERROR 404: Not Found.
=== cut ===

In a way this might be related to bug #487880, however I don't know why the cron job is constantly
trying to download URLs that don't appear to exist.

Brian May