I had a weird problem with my Tivo Bolt Vox/Harmony Elite setup the other day. My Tivo screen would go black for about five seconds with the loading indicator every time I pressed a button on my Harmony Elite remote using IR. It did not happen with the Tivo Vox remote using RF. I rebooted everything and checked that CEC was off on the Tivo. I re-added the Tivo to the Harmony software. The problem got much better, but still occurred. Yesterday it was all working fine. I'm curious what happened. The black screen seems to have come from the Tivo, as I had my TV menu up at the same time and it never lost sync. Could it be heat related?