If you don't check your recordings everyday (like some of us do), I'd record it like this:
Manual Record 9:00pm to 10:00pm (Alias)
Repeat Recording CSI:NY
You'll miss the last few minutes of Alias with that option. The major problem is that ABC isn't always sticking to going over by 1 or 2 minutes. I've seen several of their shows going over by 3 minutes lately. So, when Alias ends at 10:03, neither of your CSI:NY recordings will work.
The other option is to do a repeat recording of Alias and a manual recording of CSI:NY starting at 10:05 (giving you a few extra minutes in case Alias and the rest of ABC end even later).
Manual Record 9:00pm to 10:00pm (Alias)
Repeat Recording CSI:NY
You'll miss the last few minutes of Alias with that option. The major problem is that ABC isn't always sticking to going over by 1 or 2 minutes. I've seen several of their shows going over by 3 minutes lately. So, when Alias ends at 10:03, neither of your CSI:NY recordings will work.
The other option is to do a repeat recording of Alias and a manual recording of CSI:NY starting at 10:05 (giving you a few extra minutes in case Alias and the rest of ABC end even later).