We have had our tivo series 3 for about 3 months. We have Comcast cable and when it's working it's great. But sometimes (a few times a week) it appears to "go to sleep". It is still on, the fan is blowing, it is recording TIVO suggestions - BUT nothing appears on the screen, the remote doesn't work, nothing happens. The only way that I have found to solve the problem is to disconnect the power cord, wait a few seconds, and then reconnect and allow the unit to reboot. Needless to say, this is getting really old. Is there any other way to wake it up?