Just set up my new ZP38, and found a bizarre problem when using Tivo. The TV works normally until you use the AV button to switch to the TiVo's AV channel, and then suddenly the remote and fascia buttons stop working. It's almost as if the Tivo is 'jamming' them somehow. Switch the TiVo off, and things work fine. Have the TiVo on, but keep the TV off the TiVo's AV channel, and things work fine. It's only when I'm trying to watch the TiVo that the TV remote and buttons just stop working. I've played around with the TV and TiVo settings, but no joy. Has anyone else had this? Or does someone know how to fix it? All help gratefully received!