Thursday’s TV Highlights: Surgeons recall pivotal cases from their past on ‘Grey’s Anatomy’

SERIES

Naked Science: The new episode “Preventing Armageddon” examines some of the devices scientists are developing as technological defenses against asteroids, devastating hurricanes and other real-world dangers (7 and 10 p.m. National Geographic).

The Deep End: Liam and Dylan (Ben Lawson, Matt Long) realize they are the only ones who believe their client is innocent in this new episode (8 p.m. ABC).

SoCal Connected: David Lazarus looks at the trend of unemployed and under-employed in this new episode (8 p.m. KCET).

Past Life: When two people (Katherine Boecher and Nick Wechsler) share the same regression episodes, Kate and Price (Kelli Giddish, Nicholas Bishop) find that the couple are star-crossed lovers who rediscover each other in each life. Richard Schiff and Ravi Patel also star in this new episode (9 p.m. Fox).

Ace of Cakes: In this new episode Duff tries to meet an impossible deadline to make a cake for Oprah Winfrey (10 p.m. Food).

Brandon Bets the World: Brandon Lang travels to Edinburgh to bet his reputation and money on events and competitions in the premiere of this new series (11 p.m. Travel).

MOVIES

San Francisco: Clark Gable and Spencer Tracy star in director W.S. Van Dyke’s 1936 disaster movie (3 p.m. TCM).

SPORTS

XXI Winter Olympics: Hockey, men’s: USA vs. Norway; curling, men’s: USA vs. Denmark. (9 a.m. USA). Curling, women’s: USA vs. Denmark; hockey, men’s: Canada vs. Switzerland, Slovakia vs. Russia; hockey, women’s: Russia vs. China; curling, men’s: France vs. Canada. (2 p.m. CNBC). Hockey, women’s: USA vs. Finland. (2:30 p.m. MSNBC). Curling, women’s: USA vs. Denmark; hockey, men’s: Canada vs. Switzerland, Slovakia vs. Russia; hockey, women’s: Russia vs. China; curling, men’s: France vs. Canada. (10 p.m. CNBC).

College basketball: UCLA at Washington State (5:30 p.m. FSN); California at Oregon State (7:30 p.m. FSN); USC at Washington (7:30 p.m. FS Prime); St. Mary’s at San Diego (8 p.m. ESPN2).

Pro basketball: The Boston Celtics visit the Lakers (7:30 p.m. TNT).