[mythtv-users] Where is the OSD pop-up display time defined? XML or source code?

[William]

Trying to save myself a bunch of time searching code. I would like to 
reduce the display time of the displays superimposed on top of the video 
such as the pop-up after a commercial skip. The current time appears to 
be 3 seconds and I would like to reduce that to 1 sec. (To 
reduce/eliminate audio stutter.)  I am running 0.21-release from svn so 
editing source code is not an issue. A pointer to the correct file would 
be appreciated.

TIA,
Bill