History Detectives (8pm, UNC-TV) - Tonight, a camera that may have been used by the first female White House photographer to shoot a picture of President Truman, and a 19th-century doll that might have been used to smuggle medicine into the Confederate South.

Quirky (10pm, Sundance) - In this new show, inventors submit ideas for products that designers and engineers attempt to bring to fruition. Tonight, an all-in-one pasta strainer and a revolutionary power strip. Adrienne watched three quarters of the advance screener before it broke, and calls it "a kindler, gentler 'Shark Tank.'"  

9/11: Where Were You? (10pm, National Geographic Channel) - NGC looks at life-and-death decisions people made amid the chaos of the 9/11 attacks and in the aftermath. Includes interviews with a police officer who was at the World Trade Center, and a Pentagon staff sergeant who pulled people out of burning wreckage.

Big Sexy (10pm, TLC) - A new reality show following five plus-size women as they try to break into modeling and fashion in Manhattan.

Combat Hospital (10pm, ABC) - Rebecca takes over triage when Col. Marks is injured in an explosion, and the situation leaves her with a judgement call to make.