Plot hole: Throughout the series, Sandy always refers to Daria as "Quinn's cousin" or "that girl that lives with Quinn" or other random titles for Daria (not knowing that Daria is Quinn's sister). Although Quinn admits to Sandy that Daria is really her sister in one of the last episodes of the final season, in this first episode of the series, Sandy is in the crowd watching Daria give a speech and Daria reveals to everyone Quinn is her sister (embarrassing Quinn). Sandy should already know they're sisters.
Daria (1997)
1 plot hole in season 1 - chronological order
Starring: John Lynn, Julian Rebolledo, Tracy Grandstaff, Wendy Hoopes
Continuity mistake: In the Season 1 episode "Too Cute," Quinn mentions to Sandy that Sandy picked out Quinn's outfit that she's wearing. This could not be possible as Quinn had that outfit (the same one she always wears in every episode) since BEFORE they moved to their current town and before the girls met anyone in their school they first went to in the first episode.
Esteemsters - S1-E1
Trivia: This debut episode is the only time any reference to Beavis and Butt-Head (where Daria was originally first introduced before spinning off into her own series) is mentioned. Helen mentions the town of Highland (where B&B took place) in one line (without mentioning B&B by name). No other reference was ever made.
Question: Whenever Kevin talks to Mack, Kevin calls him "Mack Daddy." Mack always responds with "Don't call me that." What is the reason Mack doesn't like to be called "Mack Daddy"?
Answer: "Mack Daddy" was a 90s phrase meaning "Ladies man," and Mack simply doesn't like the stupid nickname.
Brian Katcher