If you don't want to know the circumstances surrounding Wednesday's entry in this slideshow, then don't read any further...
[spoiler]Wednesday's quote:
Ep #1097 (1970) - Carlie - 'Yes, you're right. I'm sorry. I MUSTN'T forget that.'
From "#1097/1098: Robservations 09/09/03: Barnabas Grills the Kids"
Tad looks around and proclaims, "We're alive!" Yes, says an elated Carrie--Daphne kept her promise, I can't believe it's true! But it is, says Tad. Where are Daphne and Gerard? asks Carrie. I don't know, says Tad. You don't suppose they've gone, do you? asks Carrie, standing, looking around nervously. You do become alarmed so easily, complains Tad. He takes her hands and assures her, Daphne hasn't left us--don't you remember?--she promised she never would. Where is she? asks Carrie--she's our governess, isn't she? You must be more careful than that, warns Tad--she WAS our governess, that was a long, long time ago, in a different life. Yes, you're right, says Carrie, I'm sorry, I mustn't forget that. There are so many things they must get used to, he points out, like these clothes. I'll never get accustomed to these, says Carrie (pointing to her short red dress).
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The Robservations references the quote perfectly...
And Carlie = Carrie possessing Hallie.