Exclusive Video: Christina Applegate Learns About Her Grandma on Who Do You Think You Are?


Christina Applegate is discovering a side of her family she knows nothing about on TLC's Who Do You Think You Are?

On Tuesday's episode, Applegate wants to learn about her paternal grandmother, a family member whom neither she nor her father ever really knew. From wedding announcements to society notices, Applegate is pretty surprised when she digs deep into her past.






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