TV column for Thursday, Feb. 19

TONIGHT'S MUST-SEE: "Grey's Anatomy," 9 p.m., ABC.
Last week's crossover episode ended in mid-crisis.
Derek (Patrick Dempsey of "Grey's Anatomy") had almost botched surgery on a pregnant patient (Jennifer Westfeldt), then seemingly recovered. He boasted to his ex-wife Addison (Kate Walsh of "Private Practice").
Except then the patient began babbling nonsense, indicating a bigger problem. Tonight, Derek and Addison struggle to save the mom and/or the baby.
Meanwhile, Cristina has doubts about a surgeon (Faye Dunaway) with a top reputation. And Bailey, applying for a pediatric specialty, grumbles about the chief's lukewarm recommendation.
TONIGHT'S MUST-SEE II: "Millionaire Matchmaker," 10 p.m., Bravo.
Here's a good hour, thanks to two exceptionally appealing millionaires.
Heidi Cornell, 41, created the shirt line called "Young, Fabulous and Broke." She's bright, beautiful and busy; with her work and her decision to have a baby, she hasn't been on a date in three years. Now she's the first female client of Patti's matchmaking agency for millionaires.
The other new client is Bill Brandes, 45. After creating a series of businesses, he has a gorgeous resort on Canada's Vancouver Island; it's an ideal place to whisk a date.
Other choices include:
-- "Ugly Betty," 8 p.m., ABC. It's Fashion Week -- always a big time for this show -- and Betty is in two worlds. She's helping a bizarre designer; also, she and a guy at a sports magazine learn each other's work.
-- "Survivor," 8 p.m., CBS. The search for a hidden immunity idol leaves trouble for two contestants. Meanwhile, another contestant reveals her identity, bringing suspicion.
-- "CSI: Crime Scene Investigation," 9 p.m., CBS. Langston (Laurence Fishburne) is testifying at a congressman's trial. Then new evidence sends people back to the lab.
-- "The Office" and "30 Rock," 9 and 9:31 p.m., NBC. These excellent comedies slip into reruns for a week. In the first, colleagues prepare for Jan's baby; in the second, Jack takes Liz to a company retreat.
-- "Sin City Law," 9 p.m., Sundance Channel. A Las Vegas visit turned brutal for Gladys Perez. She was beaten; so was her 3-year-old daughter, whose body was dropped in a dumpster. Police have charged Perez's boyfriend; if she doesn't testify against him, she'll face a murder rap, too. This documentary (which concludes next week) is raw and painful; there is, however, a glimmer of human optimism, at the end of tonight's hour.
-- "ER," 10 p.m., NBC. Dr. John Carter (Noah Wyle) was the central character when this show debuted in 1994. Now, as it nears the end of its 15th and final season (the third-longest of any non-anthology drama hour, trailing only "Gunsmoke" and "Law & Order"), Carter returns and will stay for some of the final episodes. Meanwhile, there are romantic complications, in an episode set on Valentine's Day.
-- "Private Practice," 10:02 p.m., ABC. With the crossover concluding, this show returns to its own universe. Archer (Grant Show), having had successful brain surgery, draws closer to Naomi. Still, his sister Addison suspects he's returning to his old, bachelor ways.