Today on TV

• NCIS (7 p.m., Ch. 2): Danica McKellar ("Wonder Years") guest stars as a computer expert who says she witnessed a murder for which there is no evidence.

• My Wife and Kids (7 p.m., Ch. 4): Damon Wayan's old "In Living Color" co-star, David Alan Grier, guest stars.

• Nova (7 p.m., Ch. 7): Preserving the Declaration of Independence, Constitution and Bill of Rights documents in "Saving the National Treasures."

• American Idol (7 p.m., Ch. 13): The interminable audition process continues.

• The Gilmore Girls (7 p.m., Ch. 30): Lorelai has it out with her mother and begs Luke not to give up on their relationship.

• Scrubs (8 p.m., Ch. 5): J.D. imagines what everyone's life would be like if scripted by sitcom writers.

• Frontline (8 p.m., Ch. 7): A report on "Rumsfeld's War."

• House (8 p.m., Ch. 13): Cuddy challenges House to go off painkillers for a week — but his withdrawal symptoms make it hard for him to diagnose a young patient.

• Veronica Mars (8 p.m., Ch. 24): Veronica's favorite teacher is charged with sexual harassment.

• One Tree Hill (8 p.m., Ch. 30): Well, I've completely given up on this show. What a disaster the writers have made of what was once a promising teen soap and is now nothing more than a muddled mess.

• Rodney (8:30 p.m., Ch. 4): Rodney wants to finally get Trina an engagement ring.

• NBA basketball (8:30 p.m., Ch. 14): Utah Jazz at Los Angeles Lakers

• Judging Amy (9 p.m., Ch. 2): A teen with a history of violence kills his grandfather, who was suffering from terminal cancer.

• NYPD Blue (9 p.m., Ch. 4): Sipowicz, Murphy and Clark investigate the shooting of a cop.

• Law & Order: SVU (9 p.m., Ch. 5): Turns out a murdered teen was into prostitution and porn.