In the season three premiere, Jill learns that her sister Carol is about to give birth to a baby girl and begins to imagine what life would be like with a girl, as they imagined Mark might be before they learned they were having a boy. When she brings this up to Tim, he immediately shuts the conversation down, leading to an argument. After some intuitive wisdom from Wilson, Tim realizes that he has the three boys to live out his legacy, while Jill doesn’t have any kids to pass on her interests. Now open to having the discussion, Jill confesses that’s all she wanted as her life with three boys and the blossoming career is fulfilling enough.
Meanwhile, Brad and Randy use the information that Mark was intended to be a girl to torment him.
Also be sure to check out the Fan Theory World’s fantastic theory about Home Improvement being part of the Pixar Theory.