Exclusive Clip! Jennifer Grey Learns Some Sad News About Her Family in ‘Who Do You Think You Are?’

"Extra" has an exclusive clip from Sunday’s episode of TLC’s “Who Do You Think You Are” featuring Jennifer Grey.

In the episode, Jennifer learns that her grandfather didn’t come to the U.S. with his mother, and how hard it must’ve been for him at such a young age. Watch!

“Who Do You Think You Are?” airs Sunday at 10 p.m. on TLC.

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