[mythtv] pre/post-roll and mythweb

[Chris Petersen]

> per-show pre/post roll default to 0 and are independent of the global
> setting.  The scheduler uses these values as if the actual guide data
> said the program starts X minutes early or ends Y minutes late.
> The per-show stuff is not optional, it will be used if set.  The global
> setting is optional and will only be used if it doesn't cause a conflict.

Ok, this makes sense.   I just didn't understand that "start early" was
anything more than a more user-readable version of "pre-roll".  

-- 
Chris Petersen
Programmer / Web Designer 
Silicon Mechanics:  http://www.siliconmechanics.com/
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