My wife and I have a 360 box each and want to record different programs on each box. However when looking at the saved program menu I can what I have caved is "cluttered" by what is on her box and vice versa. It is possible to see only what I have recorded
Recordings and planned recordings are shared between profiles. Watchlists and custom guide options are profile specific.
However for those with converted V6 boxes I believe there should be a way to set a recording to go to a specific box and you should also be able to filter the existing recordings to only those on the box you're using.