Bones (8pm, Fox) - An escaped convict's remains are found in a residential sewer pipe, but the team find evidence that a murder occurred inside a prison.

NCAA Championship (9pm, CBS) - The championship game in New Orleans.

American Masters: Margaret Mitchell (9pm, UNC-TV) - "Margaret Mitchell: American Rebel" profiles the author who blazed trails as one of Georgia's first female newspaper reporters and the author of "Gone with the Wind." Mitchell (left) funded the education of the South's first black doctors with her "Gone with the Wind" money. Includes reenactments based on her letters and remarks by friend Sara Mitchell Parsons and prominent authors such as Pat Conroy and Pearl Cleage. At 10 p.m., a second episode of "American Masters" will focus on Harper Lee, whose childhood in Monroe, Alabama, provided the inspiration for her classic 1960 novel, "To Kill a Mockingbird." (Photo courtesy of the Atlanta History Center)

Castle (10pm, ABC) - A Scotland Yard detective works with Castle and Beckett to solve the murder of a British model whom he knew personally. Meanwhile, Lanie advises Beckett to stop stalling and pursue Castle romantically.

Smash (10pm, NBC) - A top-tier star is sought for the musical, and Eileen wants Tom to come up with a new name for the show.

Intervention (10pm, A&E) - In the 12th-season finale, a mother and former model battles a daily dependence on alcohol, and a once-promising cellist now smokes PCP.

Lost Girl (10pm, Syfy) - Bo and Dyson portray a married couple at a country club to help a friend from Kenzi's criminal past.