If you
haven't yet heard,
Grey's Anatomy and
Private Practice are doing another crossover this season, and TVGuide.com has the exclusive details on who's popping up where.
Exclusive: Grey's Anatomy and Private Practice doing another crossover As we first reported,
Private's Amelia Shepherd (
Caterina Scorsone) will venture up to Seattle Grace in the first hour of the crossover during
Grey's. She'll...
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