Continuity mistake: After Mr Pool has dropped his briefcase and everything falls out, as Sabrina helps tidy, between shots she is holding yellow papers, then suddenly a pink file. (00:20:35)
Continuity mistake: When Mr. Pool is scribbling down the formula to turn lead into gold on the blackboard, during each shot the appearance of the writing is different. (00:05:25)
Continuity mistake: When both Libby and Jenny give a flier to a guy in the gym, in the next shot the guys hands are empty and the fliers have vanished. (00:02:10)
Answer: Those are her roomates. The first season Sabrina was in college, she moved out of the house that she shared with her aunts and she moved in with 2 girls plus another guy. I think her aunts went back to the other realm since the 2 actresses (Caroline Rhea and Beth Broderick) who played them left the show. The guy roommate also left the show the same time as Sabrina's Aunts. Then Sabrina and her roommates moved into the house.
Dan Sgambelluri
Hilda got married and Zelda became 8 years old again so that Sabrina could have her live life back.