How can I tell how much of my recording space is being utilized?
The Disk Space Meter is available for TiVo boxes with HD menus and is found in My shows. The Disk Space Meter displays the percentage of disk space being used by your recordings, but does not display the disk space occupied by TiVo Suggestions. This is because TiVo Suggestion recordings will be deleted immediately when space is required for any recordings you schedule (such as OnePass (or Season Pass) recordings).
The Disk Space Meter will show extra space when a DVR Expander is attached.