I've got 2 Tivo S3s, but my new one is only a few days old and displaying an odd behavior. At times, when I hit the "Live TV" button, instead of bringing me to the 2nd buffered channel, it brings me to the TV Guide. Hitting the Live TV button again simply removes the TV Guide from the screen. It's only until I go into Tivo Central and exit from there does the Live TV button work as designed...that is buffering two channels. Has anyone else seen this behavior and if so, what did you do to correct it. Thanks.