KALEY CUOCO A MOMMY-DAUGHTER DAY OUT ON-SET

Baby Matilda's TV career started with a big bang as she made her first on-set appearance - at just 17 months old!

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"When your little lady visits you at work for the first time, it deserves a permanent post!" proud mom Kaley Cuoco, 38, enthused while documenting the happy occasion on Instagram with photos taken on the set of her latest series, Based on a True Story.