Yesterday I upgraded to MythTv .20 on my fedora core 5 machine. It has one feature I really want, the ability to seamlessly burn DVDs from the shows I've recorded. The installation went reasonably well considering I had a bunch of library conflicts between livna and atrpms. I had to reinstall Xine due to the problem. I like .20 so far. It actually seemed to crash less while watching live tv. My only gripe right now is that the DVDs it burns have broken menus. It doesn't highlight when I try to make a menu selection. (discussions here and here.) Also, pushing the menu button doesn't return to the menu. The first problem seems to be caused by the version the mjpg library available on atrpms. I guess the version from freshrpms works better. I haven't been brave enough to try it though. I'll give it a few days and if no other solution comes up, I'll try it out.
Update (10/14/2006): got the menus working. I went to the mjpg homepage, downloaded the source, made it, but did NOT install it. Then I changed all the mythtv commands to use these local versions. Worked like a charm. (Why didn't I just get the lib from somewhere else? I had a bunch of programs dependent on the version I had that I didn't feel like reinstalling.)
The not returning to the root menu problem was my misunderstanding. Most DVD remotes have 2 menu buttons: a title menu button and a root menu button. I only had my ati wonder remote set up to do the root menu. One I fixed that, it's worked great ever since. (Thanks to all the folks at myth-users who explained that in great detail.)