NCIS

(8-9 p.m., CBS3) - The body of a Muslim Marine is found near a mosque that's a suspected terrorist recruiting center. Complicating the NCIS team's investigation is the refusal of the dead man's family, on religious grounds, to authorize an autopsy - and Ducky's (David McCallum) refusal to defy the family's wishes.

Nova

(8-9 p.m., WHYY TV12) - Korean War pilots missing in action - could some of them still be alive? That's one of the questions raised in "Missing in MiG Alley." It recalls the warfare between U.S. F-68 Sabres and Soviet MiG-15s in the airspace over the Chinese-Korean border in 1950. Modern forensics and dramatic reconstructions seek clues to the fates of more than 30 U.S. pilots believed to have survived being shot down.

The Biggest Loser

(9-11 p.m., NBC10) - Although only one contestant in this reality series takes home the grand prize at the end of the season finale, you could say that everyone who took part won. All received expert diet help and fitness training that can only benefit them as they continue working toward their goal weights.

Boston Legal

(10-11 p.m., 6ABC) - It's not easy being green, but it's easy to lie about it. Ask Denny (William Shatner), who's in trouble for allegedly misleading a client about the eco-friendliness of the firm's offices. Alan (James Spader) tries to save Clarence's (Gary Anthony Williams) home from foreclosure. Lorraine's (Saffron Burrows) future at the firm is in question.

Saving Grace

(10-11 p.m., TNT) - A burned car. A rape kit. Pictures of her sister. This is going to be one of the toughest cases yet for Grace (Holly Hunter). The latter two items were found in the car, and the investigation is about to rock Grace's world - not that this is anything unusual.