Too many Scheduled Recordings causes GUI confusion
Well, as a Manually Scheduled Recorder (i.e. I don't use Intelligent Recording), I just bumped into some sort of limit. I had added a few more programs (probably 10 or 12 total) when the last one I added didn't get displayed in the SageTV line above Channel 2 as it usually does. The border around the program was highlighted, though, and I was still able to modify the Start/End Time of that recording.
Stopping and restarting SageTV actually resulted in the EPG leaving out the SageTV lines altogether. And going to Sdheduled Recordings pressented me with the alarmingly EMPTY display.
A moment's panic was calmed when I returned to the EPG and scrolled over to a Scheduled Recording and deleted it. Upon exiting SageTV and restarting, all was back to normal. The EPG again had the SageTV lines above Channel 2 showing my Scheduled Recordings and the Scheduled Recordings screen also now showed all my Manually-added Scheduled Recordings.
So what's the limit? Is there some way this could fail more gracefully?