Episode 18 of "Felicity"
s01e18 Happy Birthday

The dorm plans a party for Julie's birthday. Carol stops by reveals that she is actually Julie's mother. She refuses to allow Julie to meet her family because she hasn't told her husband that she has another child. Julie pleads with her to re-consider. Carol shows up at the bar to watch Julie sing. She explains that her husband is Julie's father. She had the baby while they were separated, and never told him about the pregnancy after they reunited and married years later. Carol forbids Julie from contacting her father. Julie secretly observes her parents and two siblings as they dine at a restaurant. She decides to cut ties with Carol and show more appreciation for her adoptive parents. Meghan asks Felicity to watch over her mysterious box while her parents are in town. Felicity is amazed as Meghan undergoes a complete personality transformation, trying to pass herself off as a sweet, innocent preppy. Noel considers moving out of the dorm because he feels uncomfortable around Felicity. He finds an apartment, but Felicity convinces him to stay. Ben discovers that Lynn has made a lot of money through gambling. Lynn convinces Ben to place a bet in an attempt to solve his financial problems. He wins, and buys Julie an expensive guitar for her birthday.