Twin brothers are pound-by-pound the biggest winners on NBC's "The Biggest Loser."

Bill Germanakos, a 41-year-old medical salesman from Lynbrook, N.Y., lost 164 pounds, slimming down from 334 pounds to 170 pounds over an eight-month period to win the televised weight-loss competition. He took home the $250,000 grand prize.

His brother, Jim, a police officer from Massapequa, N.Y., won the weigh-in among previously eliminated contestants, dropping 186 pounds. He went from 361 pounds to 175 pounds. He earned a $100,000 prize.

The season finale was held Tuesday night. The brothers, in an appearance Wednesday on the "Today" show, said their overweight father died at age 57.

"The Biggest Loser: Couples" will premiere Jan. 1, with teams of two competing rather than individuals, NBC said.