What did Laura lie about in "Laura's Little Lie" (Season 3, Episode 3)?

Laura admits that she lied about her age (17) when she and Rob met, which means they have to get re-married. Interestingly, this plotline mirrored real life: Mary Tyler Moore lied about her age when auditioning for Laura Petrie, telling the casting director that she was two years older than she actually was.

Asked by Susanna Henke · Last updated 5 years ago · 8.8K views · SOURCE