I've been using it since at least October. I know I found it cause somebody posted around that time they saw 3 things recording at once and posted a screenshot and on SciFriday I noticed the exact same thing. Then others noticed it and quickly we discovered what was gong on. I think someone even went crazy and had something like 8 things recording at once by doing this. Yes, I make extensive use of this and it was always a big annoyance on a Tivo. For me this feature trumps DLBs and wishlists all by itself. Very, very useful feature and use it several times a week.