In last week's premiere of The Biggest Loser (7 p.m., NBC/Ch. 5), Utah Hap Holmstead lost 17 pounds, which is great. He also had to sweat out the possibility of being eliminated, which was not so great.This week, Holmtstead and the other contestants learn that only one person's weight on each of the three teams will count at this week's weigh-in. And they won't know who it is beforehand - it will be determined by a roll of the die.It's all part of the game.Elsewhere on TV ...NCIS (7 p.m., CBS/Ch. 2): DiNozzo chases a suspect from a 15-year-old case.Marvel's Agents of S.H.I.E.L.D. (7 p.m., ABC/Ch. 4): Skye's relationship with the team is jeopardized.The Biggest Loser (7 p.m., NBC/Ch. 5): Each team is judged by only one randomly chosen player's weight loss.The African Americans: Many Rivers to Cross (7 p.m., PBS/Ch. 7): The earliest Africans, both slave and free; the emergence of slavery in the American South; freedom movements in the late 18th-century.The Originals (7 p.m., CW/Ch. 30): Hayley gets a big surprise.Brooklyn Nine-Nine (7:30 p.m., Fox/Ch. 13): Jake bets Holt he can steal his Medal of Valor.NCIS: Los Angeles (8 p.m., CBS/Ch. 2): A Navy officer's girlfriend is kidnapped, and her abductor demands classified information in exchange for her release.The Goldbergs (8 p.m., ABC/Ch. 4): Adam falls for his neighbor.The Voice (8 p.m., NBC/Ch. 5): The battle rounds continue.New Girl (8 p.m., Fox/Ch. 13): Jess throws a Halloween party.Supernatural (8 p.m., CW/Ch. 30): Dean and Sam try to protect Castiel.Trophy Wife (8:30 p.m., ABC/Ch. 4): Pete and Kate try to find some time alone.The Mindy Project (8:30 p.m., Fox/Ch. 13): Mindy goes to an MMA fight with the guys.NBA preseason (8:30 p.m., NBA TV and ROOT): Utah Jazz at Los Angeles LakersPerson of Interest (9 p.m., CBS/Ch. 2): A 10-year-old girl is identified by the machinChicago Fire (9 p.m., NBC/Ch. 5): McLeod pushes Boden toward early retirement.Frontline (9 p.m., PBS/Ch. 7): The growing threat of untreatable infections.Pretty Little Liars (9 p.m., ABC Family): Is Ali still alive?Ravenswood (10 and 11 p.m., ABC Family): Creepy new spinoff of "Pretty Little Liars." (For more on this show, check out the review on this blog.)Sons of Anarchy (11 p.m., FX): The club is both strengthened and threatened.