TONIGHT'S MUST-SEES

"CSI: Crime Scene Investigation," 8 p.m., CBS. This wraps up a culture exchange. "CSI" writers created a "Two and a Half Men" episode; now that is reversed. A situation comedy star has been killed in Las Vegas. Suspects include her stand-in and the show's writers.

"Na Kamalei: The Men of Hula," 8:30 p.m., PBS. This Independent Lens documentary on kumu hula Robert Cazimero tracks dancers from practice to the Merrie Monarch Festival in 2005. Followed by "Long Story Short With Leslie Wilcox," with Cazimero as guest, at 9:30 p.m.

"30 Rock" season finale, 8:31 p.m., NBC. Tonight, the show heads to Washington. Jack (Alec Baldwin) has a government job. He'll deal with Homeland Security and, he says, "the war on the poor." (Liz hopes he means the War on Poverty. She's not sure.) He meets an overwhelmed bureaucrat, wonderfully played by Matthew Broderick. There are some hilarious moments.

OF NOTE

"Survivor," 7 p.m., CBS. This edition has battered bodies and souls. Last week, muscular James Clement was the second medical evacuee; Amanda Kimmel pulled a spectacular trick to oust Alexis Jones. Five people near Sunday's finale.

"My Name is Earl," 7 p.m., NBC. Earl is back with Billie (Alyssa Milano) and wants her to have her own karma list.

"Tougher in Alaska," 7 p.m., History Channel. Here's a fascinating look at modern-day gold miners, some well-funded and some on their own.

"Grey's Anatomy," 8 p.m., ABC. Mark's trysts have forced a new date-and-tell policy.

"Lost," 9:02 p.m., ABC. Last week had a powerful and frustrating look at Jack's rise and fall in the future, when he gets off the island. In the present, however, Locke finally finds the cabin, where there may be an all-wise adviser.