[mythtv] Schedules Direct Original Air Date not longer correct

[Peter Bennett]

I am using the sd json feed with mythTV V30, using Gary's 
tv_grab_zz_sdjson_sqlite

Since sometime in March I have found that the originalairdate on new 
episodes shows as 0000-00-00.  Something must have changed. I think I 
remember some discussion about this.

This causes me a slight problem, since I use the original air date with 
mythlink.pl.

I think the original air date should be set to airdate if original air 
date is 0000-00-00.

Any idea what may have changed?

Peter