If you don't want to know the circumstances surrounding Tuesday's entry in this slideshow, then don't read any further...
[spoiler]Tuesday's quote:
Ep #703 (1897) - Quentin - 'Oh, well you MUST forgive us. We're not as familiar with our own family's history as we should be.'
From "Robservations 10/24/02 - #702/703 - Gypsies, Tramps & Thieves"
Judith introduces Barnabas to her brother. "An unexpected pleasure, Cousin," greets Quentin, smiling broadly. Barnabas apologizes for not letting them know sooner of his arrival. Quentin warmly assures him, we're always delighted to welcome family members, no matter how distantly related. I arrived late this afternoon, says Barnabas, and I enjoy traveling. Quentin tells Judith Barnabas really resembles the portrait in the foyer. Ah, yes, the original Barnabas Collins, agrees Barnabas. Yes, says Judith, he lived a hundred years ago, in this house. Yes, says Barn, I'm quite familiar with his life, being a direct descendent, and all--Barnabas left Collinwood in 1798 (?), went to England and established that branch of the family. Quentin apologizes for not being familiar with Collins family history. Barnabas says, I'm not a historian.
[/spoiler]
This Robservations references the quote, though not fully, and not by using "must."