First it was SA FM's Andrew Cosi Costello who blamed his time at both of Adelaide's Austereo stations for his bulk out to 140 Kilo's and now fellow Biggest Loser house mate Kirsten Binnie has pinpointed her time in radio to when she started beefing up. Kirsten has revealed she started putting on weight when she became an early morning newsreader for a Sydney radio station in 2002.