IATSE took the strike against NBC’s reality series The Biggest Loser to NBC. Representatives for the union tonight hung a banner about the labor dispute in front of the NBC compound in Burbank. (photo via Twitter) The strike began last Monday night when Biggest Loser crew members, joined by IATSE representatives, walked off the set of the show. The walkout was endorsed yesterday by AFL-CIO. Striking crew members have been picketing in front of the Biggest Loser Ranch in Calabasas where the reality series is filmed.