"The Biggest Loser" 8 p.m. NBC — The teams are dissolved.
"NCIS" 8 p.m. CBS — A mysterious illness strikes dozens of children from military families.
"Hardcore Pawn" 9 p.m. TruTV (eighth season debut) — Les worries about Seth's loyalty.
"Little People, Big World" 9 p.m. TLC (10th season debut) — The Roloffs deals with change in family dynamic.
"NCIS: Los Angeles" 9 p.m. CBS — A senator's daughter is the victim of a home invasion.
"The Voice" 9 p.m. NBC (fifth season finale) — Lady Gaga, OneRepublic and Celine Dion perform. And it's anybody's call for who will win.
"Person of Interest" 10 p.m. CBS — A series of flashbacks to Finch's teen years.