Duplicate Recordings with Season Passes

Does the season pass feature have the smarts to not record the same episode if it is on the same channel but at a different time?

For example, I have setup a season pass for an old series that is in syndication. There is an upcoming episode scheduled for say 6pm tomorrow. Then looking at the scheduled recordings I there is the same episode schedules two days after the first for the same episode. I have used the all recordings option since this program is in syndication and does not have the “new” tag on it. But I don’t want to record ALL episodes if they have been recorded already.

Is this possible now or will it record ALL episodes duplicate and not be smart to say this episode has already been recorded?

Each episode is only recorded once.