Tonton Streaming Small Wonder (1985) S1E13 - RoboBrat

When overexposure to Harriet infects heuristically mimicking Vicki with Harriet's personality traits and shrieking tantrums, Ted must purge the brat out of her at his factory -- but not before Harriet and Bonnie Brindle wonder where Vicki suddenly vanished to and summon the police.