How many of us have been 40 minutes into a “CSI”, only to realize that you’ve seen the episode before?

Instead of saying “record new episodes only”; “record all episodes on this day and channel”; or “record all episodes”, the Tivo/DVR keeps a text file (~30k of disc space!) of all episodes that you have seen of a show, and only records the ones that you haven’t… and maybe even a step further… let you manually edit the list.

For example, only record “Law & Order” when it is an episode I have not seen, and it is from 1992-2004 (the Jerry Orbach years).