The Live TV button on the Costar remote simply switches to it's HDMI input. Pressing that button again when in the Tivo DVR menus (looking at recorded content for example) does nothing. Pressing the Menu button and then selecting "Live TV" does nothing as well (besides a beep from the Costar). I've tried changing one of the configurable buttons to "Live TV" as well and that acts the same way as accessing that command from the menu, doing nothing. I have yet to find a way to get my Tivo to exit the menuing system (record content/etc...) as a single button press from the remote. The closest I've come is setting a configurable button to the DVR Guide and the pressing that button twice to open and close the Tivo guide. That's slow and unintuitive. I've also tried setting the DVR up as a Tivo Series 3, Tivo Premier and Tivo Premier XL in the Co-star settings and even did a factory wipe and went through guided setup again and nothing has helped. Surely there is a way to do this that I'm missing?