The Biggest Loser‘s couples editions have been among the veteran NBC reality series’ most popular cycles. Now NBC is exploring another original unscripted format that involves couples losing weight. Weight For Love, from 5×5 Media (King Of The Nerds) and Warner Horizon TV, is an hourlong transformational series of self-contained episodes. It features overweight couples who commit to separate for a long period of time in order to regain their health, then reunite in an emotional reveal. The show is holding casting calls in Chicago, Philadelphia, Dallas and Los Angeles over the next two weeks. The project is cast-contingent, with a series pickup by NBC hinging on the producers’ success in finding compelling participants.