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“Grey’s Anatomy”
8 p.m., WLS-Ch. 7
A plumbing leak causes chaos at Seattle Grace; Derek hopes to move Meredith’s roommates out of her house.
“Nova” 8 p.m., WTTW-Ch. 11
A field expedition to collect new fossil clues on Alaska’s North Slope reveals details of the lives of polar dinosaurs.
“Modern Marvels” 8 p.m., History
This episode explores lead — from the vast mines where it’s found to a factory that makes a superior car battery from pure lead.
“Jacked: Auto Theft Task Force” 9 p.m., A&E
The helicopter helps track a wanted drug dealer driving in the area.