I've been really starting to use mythtv to its fullest. We are really enjoying it, but - it is a known problem that the program guide data does not stay populated. I have looked at mythfilldatabase.sh and MythTVDailyFillDB.sh. I have been manually running mythfilldatabase.sh every day to keep my guide data current, but I am noticing several problems.
My schedule stays populated automagically here.
It can stop working when I go into MythSetup and when you exit it asks "do you want to run mythfilldatabase?" but you can't say yes or no. When it runs anyways (completely ignoring you) then I find there can be a conflict between that and the LMCE mythfilldatabase script, which requires me to kill a couple processes on the core and then actually go into myth setup and right out, which runs the mythtv version of filldatabase, after which the lmce daily script seems to run fine again.
It doesn't take 6 hours, usually less than 40 mins.
This is on LMCE 7.10RC2 AMD64....