Do people put their Tivo Premiers into Standby mode when they're done using them? If so, is there a remote shortcut key for that? If not, how long does it take for that to happen automatically when the box is not in use? Also, if there's no shortcut key on the remote, does anyone have the hex codes or another suggestion for getting a standby command into a sophisticated universal remote (I have an MX-900)? Thanks.