Episode 72 of "Sliders"
s05e02 Applied Physics
Title: Applied Physics
Original Air Date: 06/18/1999 on Sci-Fi Channel
Director: David R. Eagle
Writer: Chris Black
Guest Stars: Howard S. Miller (Professor), Peter Jurasik (Dr. Oberon Geiger), Danyelle McNeary (Nadine), Michelle McNeary (Nadine)
Plot Outline:
Diana tries using a university lab to find a way to separate Quinn and Mallory, which leads to her first encounter with her double, a struggling single mother. Meanwhile, Mallory experiences violent flashbacks from Quinn's life.