Pulled the plugh and THEN thought about trying the android app. Too late. I'll have to try that if it happens again.
I'll have to remember that. Good idea to program it into the harmony. I'll have to do that too.When you are on a "non responding" HD "My Shows" menu screen... try the remote combo >
Thumbs Down, Thumbs Up, Play, Play.
This will reset the menu screen. You can even try it when the menu screen is responding just to see the key combo work. It takes just a few seconds, the menu will go to all black and then come back.
This avoids doing a total reboot of your TiVo and works without stopping any on going recording.
I even have this as a customized button macro on my Logitech Harmony remote.